cannot help it怎么用？如：生活很无奈

不得不的意思
I can't help the hard life

One cannot help what comes in life.

一个人对生活会发生的事无能为力，就是生活很无奈的意思。

My tears drop down.
I can not help it.
我的眼泪落了下来。我控制不了。

I cannot help it to make life any better

cannot help 无能为力

Your English is bad，but i cannot help it。

I can not help the poor life