first aid noun

ADJ. emergency

VERB + FIRST AID administer, give While one of you gives first aid, the other should call an ambulance. | receive | be trained in At least one member of staff should be trained in first aid.

FIRST AID + NOUN box, kit, manual | course | post Medics were bringing casualties to the first-aid post.

You can also check Google Dictionary: first aid (English, 中文解释 )

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