Unit53：Sentence 53

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Travel

旅行

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has existed

一直存在

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since

自从

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the beginning

开始

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of time

时间的

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Travel has existed since the beginning of time

旅行自时间之初就已存在

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when

当...时

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primitive man

原始人

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set out

出发

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when primitive man set out

当原始人类出发时

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Travel has existed since the beginning of time , when primitive man set out

旅行自远古时代便已存在，当原始人类启程

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often

经常

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traversing

traverse（现在分词）: 穿越

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great distances

很远的距离

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in search of

寻找

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game

猎物

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often traversing great distances in search of game

经常长途跋涉寻找猎物

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Travel has existed since the beginning of time , when primitive man set out , often traversing great distances in search of game

旅行自古有之，当原始人类出发时，常常长途跋涉以寻找猎物

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which

关系代词，引导定语从句

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provided

provide（过去式）: 提供

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the food and clothing

食物和衣物

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which provided the food and clothing

这些猎物提供了食物和衣物

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Travel has existed since the beginning of time , when primitive man set out , often traversing great distances in search of game , which provided the food and clothing

旅行自古有之，当原始人出发时，常常长途跋涉以寻找猎物

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necessary

必要的

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for his survival

对于他的生存

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necessary for his survival

这些都是他生存所必需的

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Travel has existed since the beginning of time , when primitive man set out , often traversing great distances in search of game , which provided the food and clothing necessary for his survival

旅行自古有之，当原始人类开始迁徙时，常常长途跋涉以寻找猎物，这些猎物为他们提供了生存所需的食物和衣物