Don’t worry about me. I’ll be all right.
    别为我担忧。我会没事的。

    You’ve been awfully quiet tonight. Is everything okay? -I’m fine.
    你今晚安静得出奇啊。你没事吧？-我没事。

    Anyway, I’m free now. Let me go with you.
    反正我闲着没事儿，就陪你走一趟吧。

    He had nothing to do yesterday, so he went to the cinema.
    他昨晚没事可干，所以就去了电影院。

    Thanks for your help. -You are welcome.
    谢谢你的帮助。-不客气（没事儿）

    There, there, honey, do you feel better? -You will be all right. There, there.
    好了，好了，亲爱的，你觉得好些了吗？-会好起来的。好了，好了。（没事，没事）