Nice meeting you. Bye-bye.

见到你（也）很高兴。再见。

Good idea.

好主意。

That would be a waste of money. What's your opinion?

那就浪费钱了。你的意见呢？

I want to improve, but I don't know how.

我想提高它，但又不知道怎么样才能提高。

To London.

到伦敦。

So I called on you and asked if I could borrow some jewellery. Do you remember now?

于是我去看望你，问你可不可以借给我一些首饰。现在想起来了吧。