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Từ điển Oxford Advanced Learner 8th
first aid
ˌfirst ˈaid [first aid] BrE NAmE noun uncountable
simple medical treatment that is given to sb before a doctor comes or before the person can be taken to a hospital
•to give first aid
•a first-aid course
Example Bank:
•At least one member of staff should be trained in first aid.
•While one of you gives first aid, the other should call an ambulance.
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