表示“逃跑”，可用作及物或不及物动词，所以表示“从……逃跑”时，其后用不用介词 from 均可。一般说来，带有介词强调过程，不带介词强调结果，但有时也可不加区分地混用。如：
He was forced to flee (from) the country. 他被迫逃离这个国家。
Only five people fled (from) the burning house. 只有5个人从起火的房屋里逃了出来。
During the civil war thousands of people fled (from) the country. 在内战期间成千上万的人逃离了这个国家。
When senior army officers rebelled, the President was forced to flee (from) the country. 高级军官们叛乱时，总统被迫逃亡。