第一句：Excuse me. Where is the washroom?

请问卫生间在哪儿？

A: Excuse me. Where is the washroom?

打扰一下，请问卫生间在哪儿？

B: This way, please.

请这边走。

第二句：Can you tell me where the restroom is?

你能告诉我卫生间在哪儿吗？

A: Can you tell me where the restroom is?

你能告诉我卫生间在哪儿吗？

B: Over there, around the corner.

在那边，拐角处。