The horse reared, throwing its rider and knockingdown a youth standing beside it.
这匹马向后一仰,摔下骑手并撞倒站在它旁边的一个年轻人。
《柯林斯英汉双解大词典》
2
However, the cow then moved through one of the nets, knockingdown a police officer in the process.
然而,这头牛随后穿过其中一张网,途中撞倒了一名警察。
3
Finally, on June 7th, McLaughlin once again demonstrated his carelessness by knockingdown several mailboxes near the edge of the company's parking lot.