straining例句
The volume of scheduled flights is
straining the air traffic control system.
定期航班的數量正讓空中交通指揮系統不堪重負。
Today we are overpopulated,
straining the earth's resources.
現在我們人口過多，致使地球資源使用過度。
There is someone
straining his ears at the door.
門邊正有人在竭力聽著什么.