動(dòng)詞敲；撞；擊；打名詞撞擊；敲擊；敲擊聲；敲門（或窗等）聲網(wǎng)絡(luò)敲打；爆震
1. knock about : 接連打擊(指拳擊), (浪等)反復(fù)沖擊(船只), (物等)碰撞, 粗暴對(duì)待(=knock around), [口]到處流...；
2. knock together : 相撞；
3. knock oneself out : 把自己弄得精疲力竭, 盡最大努力；
4. knock out : 敲空, 擊倒, 打破, 使筋疲力竭；
5. knock over : 打翻, 搜查, 吃掉；
6. get the knock : v. 喝醉, 被解雇；
7. knock up against : 碰撞；
8. knock back : 回?fù)? 震驚；
9. knock it off : 停止；
及物動(dòng)詞
1. What knocks me is his impudence.
他的厚顏無(wú)恥使我感到吃驚。
2. knock
2. I knocked over the glass and spit the water.
我打翻了杯子，水灑了。
不及物動(dòng)詞
1. His legs knocked against the chair.
他的兩條腿撞到了椅子。
名詞
1. When I fell I got a terrible knock on the head.
我摔倒時(shí)頭撞得很厲害。
Tootacke-(牙痛)
A：Oh!!! I have a horrible toothache.
哦，我的牙痛死了。
B：You should go to the dentist.
你該去看看牙醫(yī)。
A：I hate dentists.
我討厭看牙醫(yī)。
B：Well, suffer then. If you have a toothache, you have to go to the dentist.
那么，你就忍著吧。如果你牙痛，你應(yīng)該去看牙醫(yī)的。
A：It always hurts. I hate going.
它老是痛個(gè)不停，我討厭去（看牙醫(yī)）。
B：Stop being such a baby. If it really hurts that much, just let them knock you out.
別象個(gè)小孩子似的。如果牙真的那么痛的話，就讓醫(yī)生治療。
A：O.K., O.K., I’ll go.
好了好了，我會(huì)去的。
B：Good. You feel better after you do.
那才好。去了之后你會(huì)覺得好受一些的。
1. 敲缸：辛烷值是用來(lái)表示燃料發(fā)生敲缸(Knock)傾向,也就是發(fā)生自燃(Autoignition)傾向的指標(biāo). 人為地把異辛烷(isooctane)的辛烷值定為100,把正庚烷(n-heptane)的辛烷值定為零,在標(biāo)準(zhǔn)的火花點(diǎn)火試驗(yàn)機(jī)上試驗(yàn),
2. knock的翻譯
2. 敲擊：熱控制閥(Heat-Control Valve) 在引擎排氣歧管中一種節(jié)溫操作閥門,可在引擎未達(dá)正常工作溫度之前,將廢氣的熱導(dǎo)入進(jìn)氣歧管. 敲擊(Knock) 隨引擎速度出現(xiàn)的金屬撞擊聲,通常是因軸承松脫或磨損所產(chǎn)生. 主軸承(Main Bearing) 引擎內(nèi)支撐曲軸的軸承.
1. 敲；擊
If you knock on something such as a door or window, you hit it, usually several times, to attract someone's attention.
e.g. She went directly to Simon's apartment and knocked on the door...
她直奔西蒙的房間，敲了敲門。
e.g. Knock at my window at eight o'clock and I'll be ready...
8點(diǎn)鐘敲我的窗，我會(huì)準(zhǔn)備好的。
2. 碰，撞；（尤指）碰倒，撞倒，敲動(dòng)
If you knock something, you touch or hit it roughly, especially so that it falls or moves.
e.g. She accidentally knocked the tea tin off the shelf...
她不小心把架子上的茶葉罐碰了下來(lái)。
e.g. The baby was knocked from his father's arms...
嬰兒被從他父親的懷中撞落。
3. 打通（房間或建筑）
If someone knocks two rooms or buildings into one, or knocks them together, they make them form one room or building by removing a wall.
e.g. They decided to knock the two rooms into one...
他們決定把兩間屋子打通連成一間。
e.g. The spacious kitchen was achieved by knocking together three small rooms.
這個(gè)寬敞的廚房是由3個(gè)小屋子打通連成的。
4. 把…撞擊到（某個(gè)位置）；把…打成（某種狀態(tài)）
To knock someone into a particular position or condition means to hit them very hard so that they fall over or become unconscious.
knock的解釋
e.g. The third wave was so strong it knocked me backwards...
第3波浪太大了，把我打了回去。
e.g. They were knocked to the ground and robbed of their wallets...
他們被打倒在地并被搶走了錢包。
5. 使失去（某種品質(zhì)或特征）
To knock a particular quality or characteristic out of someone means to make them lose it.
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e.g. The stories of his links with the actress had knocked the fun out of him...
有關(guān)他與那位女演員有關(guān)系的傳聞使他很不開心。
e.g. When they first joined for training many were starry eyed about just sailing around the world. We soon knocked that out of them...
在他們參加培訓(xùn)之初，很多人還只是對(duì)環(huán)球航行抱有天真的想法。我們很快便使他們消除了那種想法。
6. 發(fā)碰撞聲；砰砰作響
If something knocks, it makes a repeated sharp banging noise.
knock在線翻譯
e.g. His old truck, knocking and smoking, pulled down the road and out of sight.
他那輛舊卡車一邊冒著煙一邊哐里哐啷地沿路向前駛?cè)?，直到駛出了視線。
7. 批評(píng)；貶責(zé)；挑剔；非難
If you knock something or someone, you criticize them and say unpleasant things about them.
knock的反義詞
e.g. I'm not knocking them: if they want to do it, it's up to them...
我不是批評(píng)他們：想不想做那件事取決于他們。
e.g. Never knock charter flights; they are opening up the world for budget-conscious travellers.
絕不要挑剔包機(jī)航班；他們使精打細(xì)算的乘客能夠去往世界各地。
8. 打擊
If someone receives a knock, they have an unpleasant experience which prevents them from achieving something or which causes them to change their attitudes or plans.
e.g. What they said was a real knock to my self-confidence...
他們的話是對(duì)我自信心的一次重大打擊。
e.g. The art market has suffered some severe knocks during the past two years.
在過(guò)去的兩年間，藝術(shù)品市場(chǎng)遭受了嚴(yán)重的打擊。
9. （尤指以相貌）給…留下深刻印象，使…傾倒
To knock them dead means to impress people a great deal, especially with your appearance.
knock的解釋
e.g. Glamorous make-up is best reserved for days when you want to go all out to knock 'em dead.
魅惑彩妝最好留到你竭力想把所有人都迷倒的時(shí)候。
10. 停止干擾;打住
If you tell someone to knock it off, you are telling them to stop doing something that is annoying you.
e.g. Will you just knock it off!
別鬧了！
11. to knock peoples' heads together -> see head
to knock something on the head -> see head
to knock someone or something into shape -> see shape
to be knocked sideways -> see sideways
相關(guān)詞組：knock aboutknock aroundknock backknock downknock offknock outknock overknock togetherknock up