help sb do sth 就是幫助某人做什麼

help sb with sth 就是在某事上幫助某人

help yourself/sb. (to sth.)把某物(尤其是指食物,飲料等)拿給自己/某人

can/can"t/couldn"t help sth.能/不能停止或避免某事

can"t help doing sth.情不自禁做某事

help(sb.) out幫助/資助某人擺脫困境

can"t help do sth 無法幫助做某事

can"t help but do只能做某事，不得不做; 不能不;必須;只好

例句：I can"t help thinking he knows more than he has told us.

我總覺得他沒把他知道的事全告訴我們。

I can"t help feeling that this may just be another of her schemes

我不免覺得這可能只是她的又一個詭計。

I can"t help feeling sorry for the poor man

我不禁為這個可憐的男人感到難過。

It couldn"t be helped (= there was no way of avoiding it and we must accept it) .

這是不可避免的。

例句：I always end up having an argument with her, I don"t know why, I just can"t help it .

我總是和她意見不合，鬧得不歡而散，我不知道為什麼，我就是忍不住。