还可用于礼貌地请求某人的帮助。

You also use "Could you" to ask someone politely for help.

youdao

如果某人请求你帮忙的事属于以下两种情况：1、自己做不了多少贡献；2、没有提供帮助的资源，那就告诉他们找错对象了。

If you are being asked for help in something which you (i) can't contribute much to (ii) don't have resources to help, let it be known they are looking at the wrong person.

youdao

按照我的理解，呼叫被表达为探讨会上的提问或者向某人请求帮助。

As I understand the Call is expressed by a question on consultation or the request for the help to someone.

youdao