lavatory

◊ In U.S. English, lavatory is most often used for a room in an airplane.在美国英语中，lavatory常用于指飞机上的洗手间。

◊ It may also be used for a room in other kinds of public places.也可用于指其他公厕。

◊ In British English, lavatory is most often used for a room in a public place but may also be used for a room in a home.在英国英语中，lavatory常用于指公厕，也用于指家里的厕所。