I was so angry at what I overheard in the lavatory that I burst in and demanded an apology.

我无意间听到他们在厕所里的谈话，勃然大怒，就冲进去 要求他们 道歉。

youdao

There's no more toilet paper in the lavatory, we should let someone know about this problem.

厕所里面没纸了，我们应该让其他的人知道这个问题。

youdao

A blockage in the lavatory or the galley drain is possible if unwanted materials get in the system.

如果外来物进入厕所或厨房的排放系统则会引起堵塞。

youdao

The toy had been left in the lavatory of the bar-restaurant, the agency added.

CNN: Mystery Spain blast kills woman

Instead of using a timer or a plunger or another reliable detonation mechanism, as would any commercial user of PETN, he had to resort to an ad hoc homebrew -- and a much more inefficient one, involving a syringe, and 20 minutes in the lavatory, and we don't know exactly what else -- that didn't explode.

CNN: Stop the panic on air security

Governments should encourage the capture of rainwater for use in washing and lavatory flushing, without the need for all water to achieve drinking water purity.

BBC: Harrabin's Notes: Population overload?