劫机the activity of taking control of a flying aircraft by force, usually in order to make political demands, or an example of this
The number of skyjackings has risen alarmingly this year. 今年劫机事件的数量上升得令人震惊。
Skyjacking has become a major problem for the airlines. 劫机对航空公司来说已经成为一个主要的问题。
See: skyjack