英 [ˈnɒk daʊn]
击倒：用猛烈的一击将某物击倒在地。
拍卖出售：将物品以拍卖方式卖给竞标者。
拆卸：将物品拆开。
获得（收入或薪水）：作为收入或薪水的来源。
降低（价格）：减少（价格）。
knock down // [ knocking knocked knocks ]
动词词组 To knock down a building or part of a building means to demolish it. 拆掉 (建筑物等)
Why doesn't he just knock the wall down?
他为什么不索性把墙拆掉？
动词词组 If someone is knocked down or is knocked over by a vehicle or its driver, they are hit by a car and fall to the ground, and are often injured or killed. (开车) 撞倒
He died after being knocked down by a car.
他被一辆汽车撞倒后死了。
A drunk driver knocked down and killed two girls.
一个喝醉了酒的司机撞死了两个女孩子。
A car knocked him over.
一辆汽车把他撞倒了。
动词词组 To knock down a price or amount means to decrease it. 降低 (价格)
The market might abandon the stock, and knock down its price.
商场可能会清理库存，降低价格。
撞倒
拆除
... hand down (从上代)传下来 knock down 撞倒，拆除，降低(价格等)，击倒 pass down 留传，把……传下来 ...
... ③She lied to her mother. 她对母亲说了谎。 knock down: 击倒；打倒；撞倒 knock in (into): 敲进；打入 ...
... keep up(with)跟上；赶上；保持；不落在后面；及时了解(情况) knock down拆除；拆卸；打倒，撞倒；使减价 knock off下班，停止工作；减低，扣掉；匆忙做完(写完) ...
... kind of(状语)有点儿，有几分 knock down撞倒;击落;拆除 knock off把…敲掉;击倒;停工 ...
The elephant has such great strength that he can knock down a man with it.
大象力气很大，可以打倒一个人。
The market might abandon the stock, and knock down its price.
商场可能会清理库存，降低价格。
Please don't knock down all those cans.
请不要敲那些罐头。
India's home minister, Palaniappan Chidambaram,is trying to knock down such speculation.
VOA : standard.2009.10.30
So, the bowlers do their bowling and sometimes they knock down all the pins, which is called a what? A strike.
投球手投球时,有时他们撞到了所有障碍物，这叫什么呢，全打。
心理学导论课程节选 : 耶鲁公开课
to make sure that they didn't knock it down.
以确保它不被拆毁。
SpeakingMax英语口语达人 : 中央车站的历史
And my center of gravity is a little bit lower." "I feel like sometimes it is a little more difficult to knock me down.
VOA : standard.2010.02.09
How about Iranians training Herzbollah to figure out how to knock down parts of the grid?
FORBES: Former CIA Director: The Grid Is Vulnerable To Attack
Still, I can't go back and knock down the columns and yank out the vines.
Dimon also seems like he is trying to knock down the foundations of the Volcker Rule.
FORBES: Dimon Speaks Truth On Lending And Subtly Attacks Volcker Rule