control造句
The volume of scheduled flights is straining the air traffic
control system.
定期航班的数量正让空中交通指挥系统不堪重负。
The passengers went through immigration
control and collected their baggage.
旅客通过入境检查后领取了自己的行李。
Condoms are an effective method of birth
control if used with care.
如果使用得当，避孕套是很有效的避孕手段。