Excuse me. Are you a new student?

请问，你是新同学吗？

It's really nice of you. Thank you very much. said the man.

“你们真好。非常感谢你们”，那人说。

She works very hard and is very helpful.

她工作非常努力，对同学们帮助很大。

How long have you lived there?

你在那里住多久了？

I'll leave a message on his desk.

我将把留言条放在他的桌子上。

It's used for cutting.

用于切割。