高中英语第三册unit 5 First aid 课件
1. You skin also keeps you warm or cool; it prevents your body from losing water; it is where you feel cold, heat or pain; and it gives you your sense of touch.
keep you warm or cool
A electric fan will help to keep you cool.
This story will keep the children amused.
The illness kept her in hospital.
I’m sorry to keep you waiting.
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