词组	knock sth off sth
释义	●ˌknock sth ˈoff●ˌknock sth ˈoff sth1. to reduce the price, value, etc. of sth 降低（价格、价值等）；（从…）减去◆We’ve knocked £20 off the price. 我们已减价 20 英镑。◆The short cut knocks about half an hour off the journey. 抄近道节省了大约半小时的行程。◆That hairstyle knocks years off your age. 那个发型让你年轻了好几岁。2. to remove sth, and usually make it fall to the ground, by hitting it （从…）打落，敲掉◆Who knocked that glass off the table? 谁把桌上的玻璃杯碰掉了？◆She knocked my glasses off. 她把我的眼镜撞掉了。[v + n/pron + adv] [v + adv + n] [v + n/pron + prep] ●I’ll knock your ˈblock/ˈhead off (BrE, informal) used to show that you are very angry with sb, by threatening to hit them （用于表示非常气愤）我要打掉你的脑袋，我要揍扁你●knock/blow sb’s ˈsocks offto impress or surprise sb very much 给某人留下深刻印象；使某人感到万分惊奇
随便看	knock-out knockout knock sb about knock sb around knock sb back knock sb back sth (BrE, informal) knock sb down knock sb off knock sb off (slang) knock sb off sth knock sb out knock sb over knock sb/sth down knock sb/sth out knock sb/sth out of sth knock sb up (informal) knock sth about knock sth around knock sth back (informal) knock sth down knock sth in knock sth in/into sth knock sth in sth knock sth off knock sth off

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