You should know how to do basic first aid.
你应该懂得如何实施基本的急救。
Third, bring a first aid kit and know how to use it.
第三，带一个急救箱并知道如何使用。
In case of an accident, bicycle riders should know how to give first aid.
万一发生事故，自行车骑行者应该知道怎样进行急救。
In case of an accident, bicycle riders should know how to give first aid.
万一发生事故，自行车骑行者应该知道怎样进行急救。
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