A businessman needs three umbrellas - one to leave at the office, one to leave at home, and one to leave on the train.

A businessman needs three umbrellas - one to leave at the office, one to leave at home, and one to leave on the train.

一个商人需要三把伞——一把放在办公室，一把放在家里，一把放在火车上。

-- Paul Dickson 保罗·迪克森