击倒；停工；中断

blocking off───阻挡；封堵

clocking off───打卡以记录下班时间

kicking off───开始造斜；开始某种活动

knocking on───手球

knocking out───原子位移；击出

knocking copy───贬低竞争者的广告

knocking down───击倒；拆卸

Keep at it and you'll soon be knocking off your most important tasks easily.───加油干别松劲，你很快就能轻轻松松击破那个最重要的任务。

He removed the cigar, knocking off the ash.───他取出雪茄，敲掉烟灰。

A new study finds it's never too late to gain health benefits by knocking off such bad habits.───一项最新研究发现，要使健康受益，任何时候戒除这些坏习惯都为时不晚。

Perhaps it isn't so surprising to hear reports of Chinese entrepreneurs recently knocking off Apple stores and Dairy Queen outlets.───最近中国出现山寨苹果（Apple）店和冰雪皇后（DairyQueen）店的消息或许没那么令人意外。

Hey, you know what, that Skil saw's pretty loud for eight-thirty at night. How would you feel about knocking off for the day?───我说，你那个电锯在晚上八点半听上去实在是太吵了，你觉得今天就干到这里怎么样？

Toproducetheelectron beam, a laser will fire at a target made of gallium arsenide, knocking off billions of electronswitheach pulse.───产生电子射束的方法，是利用一道雷射轰击用砷化镓制成的标靶，每个脉冲会打出几十亿个电子。

This is currently done by knocking off European competitiveness, in effect spreading recessionary forces across the Atlantic.───目前，这件事情正通过削弱欧洲竞争力的方式在完成，事实上将经济衰退冲击蔓延到大西洋的这一边。

The bus rams into the house, knocking off the pillars.───巴士撞进房子里，把柱子撞倒了。

Bluechel, unharmed, fled the scene, a bullet knocking off his cap as he ran.

Cars can be stolen almost as easily as knocking off a bike.

Current thinking is that some 4 billion years ago, a Mars-sized object smashed into the proto-Earth, knocking off a chunk of planet that eventually formed into the moon.

What do you do with an evil one, who is knocking off the neighbors?

Roland makes a lot of money knocking off copies of famous paintings.