之前我做过实习导游，所以我不怕辛苦而且服务意识强。

I once was a guider as my part time job , so I can sustain hard work with good sense of service.

youdao

现在我才知道，他是两个人在旅游，他真的不怕辛苦，因为他“心苦”。

Now I understand that he had a companion within his heart during the travels and he was not afraid of any trouble.

youdao