Good morning, sir.

先生，早上好。

Good idea! When shall we meet?

好主意！我们什么时候会面？

There are eighteen floors in the building, and he lives on the fifteenth floor.

这幢大楼有18层。他住在第15层。

Li Lei.

李磊。

The cloud will lift quite quickly.

云很快就会消散的。

Excuse me, please! Which is the way to the North Street Hospital?

请问，去北街医院怎么走？