knock off 和knock over的用法

题目

knock off 和knock over的用法
一道选择题里同时有knock off 和knock over,整句话的意思中是撞倒的意思,那应该选哪一个.

答案

当knock off和knock over同时在表示“撞倒”意思的时候,knock over一般就是指撞倒（+ed被动）,比如说A boy was knocked over by a passing car but was fortunately unhurt.而knock off则指从某个地方（被）撞倒,如A boy was knocked off his bike by a passing car but was fortunately unhurt.你是不是的做区统练上的题?