knock
[nɔk]
v.敲击, 互撞, 攻击
n.敲, 敲门, 敲打
例句与用法：
Knock it off, kids, I'm trying to sleep!
孩子们，别闹了，我要睡觉了！
She knocked the bottom out of our argument.
她把我们的论点驳得体无完肤。
I often feel that politicians should have their heads knocked together, like naughty children.
我时常觉得应该像教训淘气孩子那样让政治家停止争吵。
Someone is knocking at the door.
有人在敲门。
Did you hear the knocks at the door?
你听到敲门声了吗？
He knocked a big hole in the wall.
他把墙撞出了一个大洞。
词形变化：
动词过去式: knocked | 动词过去分词: knocked | 动词现在分词: knocking | 动词第三人称单数: knocks |
详细释义：
vi.
1. 相撞, 碰击[(+against)]
His legs knocked against the chair.
他的两条腿撞到了椅子。
2. 敲, 击, 打[(+on/at)]
He knocked at the door and entered.
他敲了敲门便走进去了。
3. (发动机等由于故障)发爆震声
vt.
1. 敲, 击, 打[O]
The falling bottle knocked him on the head.
跌落的瓶子砸在他的头上。
2. 击(撞)成……[O][O8]
The blow knocked her senseless.
那一击把她打昏了。
3. 【口】批评, 贬损
The critic knocked her latest novel.
那位批评家贬损她最新的那部小说。
n.[C]
1. 敲; 击, 打
When I fell I got a terrible knock on the head.
我摔倒时头撞得很厉害。
2. 【口】不幸; 挫折; 艰苦
We have to take certain knocks in life.
我们在一生中总得遭受某些挫折。
3. 爆震声
4. 【美】【俚】指摘, 挑剔
短语词组：
knock about
1. 漂泊; 漫游
They have knocked about all over the world.
他们曾周游世界。
2. 殴打; 虐待
The woman was cruelly knocked about by her husband.
那女人遭到她丈夫的毒打。
knock down
1. 击倒; 击落
Bill knocked him down with one blow.
比尔一拳把他打倒在地。
2. 拆毁
The building is being knocked down.
这座建筑物正被拆毁。
3. 降低
I knocked his price down to $20.
我把他的售价降到二十元。
knock off
1. 撞倒; 打掉
The little girl knocked the glass off by accident.
小女孩不小心碰落了玻璃杯。
2. 减去
They knocked off five dollars from the price.
他们把价格降低了五美元。
3. 停止; 歇工
Let's knock off now.
咱们现在歇一会儿吧。
knock out
1. 击倒
Jack knocked his opponent out in the second round of the contest.
杰克在比赛的第二回合就把对方击倒了。
2. 使昏迷
The drug knocked him out.
麻醉毒品使他昏迷了。
3. 淘汰
Our team was knocked out in the second run.
我们的队在第二轮比赛中被淘汰。
knock over
1. 打翻; 撞倒
He knocked a glass over.
他把玻璃杯打翻了。
2. 使惊奇
She was knocked over by the news.
她被那消息惊呆了。
3. 消除
We have knocked over every difficulty.
我们已排除种种困难。
knock up
1. (使)筋疲力尽
The long journey knocked them up.
长途旅行把他们累坏了。
2. 赚得
His father knocked up over 30000 dollars last year.
他父亲去年挣了三万多美元。