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C147 · 普通句（141 课）
The research shows that spending time outdoors has a range o
Course 147
(普)The research shows that spending time outdoors has a range of benefits.
1 句 · 父母与孩子分角色配音
旁白 neutral
The research shows that spending time outdoors has a range of benefits
研究表明，户外活动具有诸多益处
