(一).Where can I freshen up? 卫生间在哪儿？
原音重现：

A：Where can I freshen up?
卫生间在哪儿？
B: The bathroom is down the hall, on the left.
顺着走廊左拐就是了。

(二).I don't want to wear out my welcome. 希望不是太打扰了。

原音重现：

A：You can stay as long as you want to.
随你待多久都行。
B: I'll just stay a few days. I don't want to wear out my welcome.
我只待几天就行了，我不想给你添太多麻烦。