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________________________________________________________________________________________________ 答案: Dear Lily,

Pleased to receive your letter. I think we have to learn something about first aid, for unexpected accidents often happen in the daily life. Here is some advice on how to do first aid. 1. If the person is not breathing, you must try to start his breath at once, using the mouth-to-mouth way.

2. If the person is bleeding badly, you must try to stop the bleeding by pressing a handkerchief onto the bleeding point and hold it there.

3. If someone is bitten by an animal, you had better wash his wound under cold running water and go to see a doctor as soon as possible.

4. For the slight knife wound, you only need to wash and clean it, and then you can cover it with a piece of clean cloth.

Hope to hear from you soon.

Yours, Mary