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1.What do you already know about first aid?关于急救,你已经了解了什么?(1)know about表示“对……了解”。例如:Tell me everything that you know about the team.告诉我你所了解的关于那个队的所有情况。
1. What do you already know about first aid? What do you already know about first aid?(1) Know about it means to “understand...”. For example: Tell me everything that you know about the team. Tell me everything you know about that team.