give a hand用法

give a hand用法
是give a hand to do 还是
give a hand in doing\sth

额,两个意思不同了啦.
1、give/lend a hand to ：帮忙,支援；帮忙,增援；帮忙,支援.
Example,
Give a hand to anyone.
对任何人给予帮助.
He promised that he would give me a hand in the event of an emergency.
他答应万一出现紧急情况可以助我一臂之力.
2、give a hand in ：帮忙,参加；在...给予帮助.
Example,
When I am in trouble,they give me a hand in time.
他们及时地帮助了在困境中的我.他们及时地帮助了在困境中的我.
Always give a hand to other people.
总是帮助其他的人们.
However,could we always give a hand to others?
尽管如此,我们是否总能助人一臂之力?
没那么复杂啦,只是我回答得详细些.!