- 把…往上敲，向上击：
to knock a ball up
把球往上击
- 敲(门、窗等)唤醒：
I asked my father to knock me up at six o'clock.
我让我爸爸6点钟敲门叫醒我。
- 【板球】很快得(分)：
The cricket team needs to knock up forty-five runs before tea, if they're to have a hope of winning.
如果这个板球队还打算有希望获胜的话，他们需要在饮茶前再得45分。
- [英国口语](使)精疲力尽；(使)累垮，累病：
The long journey really knocked me up.
长途旅行真把我累垮了。
Don't knock yourself up trying to finish the job.
不要因为急着完成这项工作把自己累病了。
- 匆匆做成；拼凑：
to knock up a meal
匆匆做完一顿饭
The campers knocked up a hut for themselves.
那些野营者为自己拼凑起了一个帐篷。
- 【网球】赛前试打，赛前练习：
You'd better knock up for a while before starting the game.
在比赛开始前你们最好练习一下。
- 使结束；破坏：
Unfair competition had knocked up the once flourishing business.
不公平竞争使得一度繁荣的商业遭到了破坏。
- 偶然结识：
She knocked up an acquaintance with a few people in this neighbourhood.
她偶然与住在这个居民区的几个人相识。
- [口语]赚得，挣得：
He knocked up a good sum last year.
他去年赚得了相当可观的一笔钱。
- 使不安：
My mother felt rather knocked up by the news.
我母亲听到这消息感到很不安。
- [英国口语]登门拜访式拉选票：
to knock up votes
登门拜访式拉选票
- [美国俚语]使怀孕：
The girl was knocked up by her boyfriend.
这个女孩的男朋友使她怀孕了。