knifepoint /ˈnaɪfpɔːɪnt/ (also knife-point)

• 1. 

  PHRASE If you are attacked or robbed at knifepoint, someone threatens you with a knife while they attack or steal from you. 在刀子威胁之下 [journalism] [PHR after v]

  例：

  A 15-year-old girl was attacked at knifepoint in a subway.

  一名15岁的女孩在地铁里遭到持刀袭击。