Unit 21-U字母开头的词汇

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The building's design is widely considered ugly and outdated.

这座建筑的设计被普遍认为丑陋且过时。

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Winning the championship was the ultimate goal for the team.

赢得冠军是这支队伍的终极目标。

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Prolonged exposure to ultraviolet radiation can damage skin cells.

长时间暴露于紫外线辐射会损伤皮肤细胞。

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She opened her umbrella as the rain began to fall.

雨开始下时，她撑开了伞。

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He was unable to attend the meeting due to illness.

他因生病无法参加会议。

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The jury reached a unanimous verdict after three hours' deliberation.

陪审团经过三小时审议后达成了一致裁决。

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My maternal uncle lives in Edinburgh.

我母亲的弟弟住在爱丁堡。

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Journalists uncovered evidence of widespread corruption.

记者揭露了普遍腐败的证据。

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The contract is still under review by legal counsel.

该合同仍在由法律顾问审核中。

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We often underestimate the time required for complex tasks.

我们常常低估完成复杂任务所需的时间。

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All applicants must undergo a thorough background check.

所有申请人都必须接受彻底的背景调查。

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She is an undergraduate majoring in environmental science.

她是一名主修环境科学的本科生。

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The city's underground railway system carries over five million passengers daily.

该市的地下铁路系统每天运送超过五百万人次。

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Economic inequality underlies many social tensions in modern societies.

经济不平等构成了现代社会许多社会紧张关系的基础。

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Please underline all key terms in the first paragraph.

请在第一段中将所有关键词加下划线。

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The underlying cause of the disease remains unknown.

该疾病的潜在病因仍未明确。

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Constant criticism can undermine a student's confidence.

持续的批评会破坏学生的自信心。

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There's a hidden compartment underneath the floorboards.

地板下方有一个隐藏的隔间。

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I don’t fully understand how this algorithm works yet.

我目前还不能完全理解这个算法的工作原理。

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Mutual understanding is essential for effective teamwork.

相互理解是高效团队合作的关键。

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The university will undertake a comprehensive review of its curriculum next year.

大学将于明年开展课程体系的全面审查。

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Launching a sustainable energy project is a massive undertaking.

启动一个可持续能源项目是一项浩大的事业。

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You can easily undo the last edit by pressing Ctrl+Z.

按Ctrl+Z即可轻松撤销上一次编辑。

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Undoubtedly, climate change poses the greatest long-term threat to biodiversity.

毫无疑问，气候变化是对生物多样性最重大的长期威胁。

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Many investors feel uneasy about the volatility of cryptocurrency markets.

许多投资者对加密货币市场的波动性感到不安。

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Rising youth unemployment has become a critical policy challenge.

青年失业率上升已成为一项紧迫的政策挑战。

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An unexpected power outage disrupted the entire conference.

一次意外停电扰乱了整场会议。

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Events began to unfold rapidly after the announcement was made.

公告发布后，事态迅速展开。

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Unfortunately, the scholarship application deadline has already passed.

不幸的是，奖学金申请截止日期已过。

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All staff members are required to wear the official company uniform.

所有员工都须穿着公司正式制服。

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The new legislation aims to unify education standards across all regions.

这项新立法旨在统一全国各地区的教育标准。

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The teachers’ union voted unanimously to strike next month.

教师工会一致投票决定下月罢工。

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Each ecosystem possesses a unique combination of species and conditions.

每个生态系统都拥有独特的物种组合与环境条件。

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This textbook is divided into twelve thematic units.

这本教材分为十二个主题单元。

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We must unite to face this global challenge.

我们必须团结起来应对这一全球性挑战。

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National unity is essential for social stability.

国家团结对于社会稳定至关重要。

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English has become a universal language for international business.

英语已成为国际商务的通用语言。

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Scientists are still exploring the origins of the universe.

科学家仍在探索宇宙的起源。

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She earned her PhD from a prestigious British university.

她从一所著名的英国大学获得了博士学位。

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You won’t pass the exam unless you study consistently.

除非你持续学习，否则你无法通过考试。

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Unlike his brother, she prefers quiet evenings at home.

不像她的哥哥，她更喜欢在家安静地度过夜晚。

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Workers began to unload cargo from the container ship.

工人们开始从集装箱货轮上卸载货物。

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The library remains open until midnight on weekdays.

图书馆在工作日开放至午夜。

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It’s unusual for him to arrive late without calling first.

他没提前打电话就迟到，这很不寻常。

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Please stand up when the judge enters the courtroom.

法官进入法庭时，请起立。

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Make sure to update your software regularly for security.

请定期更新软件以确保安全。

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They decided to upgrade their old laptops to improve performance.

他们决定升级旧笔记本电脑以提升性能。

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Judges must uphold the law impartially and without fear.

法官必须不偏不倚、无所畏惧地坚持法律。

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Upon hearing the news, she immediately called her family.

一听到这个消息，她立刻给家人打了电话。

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The upper floor of the building houses the executive offices.

这座建筑的上层设有高管办公室。

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He is widely respected as an upright and principled leader.

他作为一位正直且有原则的领导者而广受尊敬。

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She felt deeply upset after learning about the unfair decision.

得知这一不公平的决定后，她感到非常沮丧。

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The guest bedroom is located upstairs, next to the bathroom.

客房位于楼上，紧邻浴室。

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All our records are kept up-to-date in the secure database.

我们所有的记录都保存在安全数据库中，并保持最新。

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There was a steady upward trend in renewable energy investment last year.

去年可再生能源投资呈现稳定上升趋势。

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Urban planning must prioritize green spaces and public transport.

城市规划必须优先考虑绿地和公共交通。

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Environmental groups urge governments to adopt stricter emissions policies.

环保组织敦促各国政府采取更严格的排放政策。

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This matter requires urgent attention due to the approaching deadline.

此事因截止日期临近而需紧急处理。

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The teacher asked us to submit our essays by Friday.

老师要求我们在周五前提交论文。

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The dictionary provides clear examples of word usage.

这本词典提供了单词用法的清晰例句。

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Please use the hand sanitizer before entering the lab.

请在进入实验室前使用免洗洗手液。

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This equipment is used exclusively for research purposes.

该设备仅用于研究目的。

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The feedback from peers proved extremely useful for revision.

同伴的反馈对修改极为有用。

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Complaining about the delay is completely useless now.

现在抱怨延误完全无用。

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All registered users must agree to the platform’s terms.

所有注册用户必须同意平台条款。

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She took her usual seat by the window.

她坐到了自己通常靠窗的位置。

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He usually arrives at work ten minutes early.

他通常比上班时间早到十分钟。

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Water and electricity are essential utility services.

水和电是基本的公用事业。

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Farmers in the region utilize solar energy to power irrigation systems.

该地区的农民利用太阳能驱动灌溉系统。

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We expect the utmost professionalism from all staff members.

我们期望所有员工展现出极度的专业精神。

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His silence was an utter surprise to everyone present.

他的沉默让在场所有人完全意外。