Let me think about it a little more. 让我再考虑考虑。

　　I haven't thought about marriage yet. 我还没想过结婚的事情。

　　Let me think about that and I will get back to you. 让我再想想，回头给你答复。

　　Don't even think about (doing) it. You can't do that. 连想都别想。你可绝对做不了。

　　We may never see each other again.  我们可能再也不用见面了。

　　I don't like to think about that.  我想都不愿意想。