first aid(急救)造句

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first aid(急救)造句
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first aid(急救)造句
first aid(急救)造句

first aid(急救)造句
it is necessary
for us to learn some basic methods of the first aid in case of emergency
.

we should know some basic knowledge of first aid 我们应该懂一些急救常识

He needs first aid as his heart attack.他因心脏病发作需急救