7 p.m. Will you be free then?

晚上7点。那时你有空吗？

I would like to ask you about some stamps.

我想问问有关一些邮票的事。

Anyhow, I'll see you next week.

无论如何，我下星期会见你的。

My friend, you shouldn't judge strangers always by the clothes they wear.

朋友，对于陌生人，你不应该老是凭人家的衣着来判断人。

How do you do ? Are you having a nice time in Beijing?

你好！你在北京玩得愉快吗？

What's the problem with building the new factory then?

那么，建新厂有什么问题吗？