Potamometer
n. 水力計
??? 情景例句
I'm in great need of your assistance.
我特別需要您的幫助。
Walls (or Pitchers) have ears.
隔墻有耳。
From time to time, I notice that he puts a piece of meat down his trousers just before he leaves the factory.
我經(jīng)常看到，他在快要離廠前把一塊肉藏在褲子里。