谢谢你不辞辛苦地帮助我。

Thank you for taking the ___trouble to help me.

他不辞辛劳地亲自写信给他们每一个人。

He took the ___trouble to write to each of them personally.

我可以载你一程——不麻烦。

I could give you a lift - it's no ___trouble.