情不自禁地笑英语

me would stretch on and on, with ambition long departed from the human heart.

这句话在英文里说成：I couldn't help laughing.I couldn't but laugh.I couldn't help but laugh.注意，couldn't help后面用动名词，couldn't but后面用动词原形，couldn't help but后面也是动词原形。注意，连接词but前面有do时，后面的动词不定式也可以省去to，如：My father being in poor health, I could do nothing but give up university.连接词but前面无do，后面的动词不定式要带上to，如：My father being in poor health, I had no choice but to give up university.希望我能帮助你解疑释惑。

I couldn't help laughing. 我情不自禁笑了起来。

can not help smiling

I can't (couldn't ) help laughing!

i cannot help smiling

can't help laughing ,can't help doing sth,情不自禁做某事 祝楼主更上一层楼