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雷达卡
B5U5 Vocabulary Building
3. Key sentences
1. It also helps control your body temperature, prevents your body from losing too much water, warns you when things are too hot or cold and gives you your sense of touch.
它也帮助控制你的体温，防止你的身体失去过多水分, 对外物过热或过冷时发出警告，并且让你有触觉。
prevent… (from) doing 阻止……做……
keep … from doing sth.stop …(from) doing sth.
类似句型：
The emperor ordered his porters to prevent the speaker (from) entering the building.
完成句子：
1) There is no denying that sunglasses can help ______________ ...
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