If I know more about first aid, I could help them.

如果我多知道一点急救知识，我就能帮助他们了。

youdao

Help before it's too late. Attend first aid training.

在太晚之前伸出援手。请参与急救训练。

youdao

Help before it's too late. Attend first aid training.

在太晚之前伸出援手。请参与急救训练。

youdao