某人忍不住(或無法抑制)做某事;不可能避免某事
sb cannot help (doing) sth
used to say that it is impossible to prevent or avoid sth
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。
釋義來自《牛津高階英漢雙解詞典》第 9 版