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bout a person or state of affairs) 例句: puter warning system keeps tracks of a driver’s condition by monitoring his heart beat with signals transmitted from a band round his wrist. 計(jì)算機(jī)的警示系統(tǒng)通過司機(jī)手腕上的帶子所發(fā)出的信號(hào)來監(jiān)測他的心跳,以此來掌握一個(gè)司機(jī)的情況?! ?transmitters attached to some of the sea animals help the researchers keep track of the animals’ movements. 系在某些海洋動(dòng)物身上的無線電發(fā)報(bào)機(jī)幫助研究人員掌握動(dòng)物的動(dòng)向?! ose track of 丟了…蹤跡。沒有注意…(和keep track of是反義的) A:Why were you late for the meeting this afternoon? A:你怎么開會(huì)遲到了? B:I just lost track of the time. B:我沒有注意時(shí)間?! ose track of 市區(qū)線索,注意不到(fail to keep or notice information of the ongoing incident) 例句:Minor mental mistakes are mistakes that any adults would make when tired or careless and they could lead to accidents because we lose track of what we are doing. 小的心理失誤是任何成年人在疲憊或疏忽時(shí)都會(huì)犯的,當(dāng)我們不注意正在做的事情時(shí),這些失誤會(huì)釀成大禍?! n the right track 路子對了,思路對了 例句:You are on the right track. I just think you need to narrow the topic down. 你的路子走對了。我只是覺得你應(yīng)該把題目再縮小一點(diǎn)兒?! ?v. are的過去式,是 If I were you, I’d… 如果我是你,我就...(虛擬語氣,表建議)(I suggest you should...) A:Do you think it’s good for me to go abroad for further study) A:你認(rèn)為出國繼續(xù)學(xué)習(xí)對我有好處嗎? B:If I were you, I’d be delighted with such a luck. B:如果我是你的話,我會(huì)很高興有這樣的運(yùn)氣?! ±洌篒f I were you, I’d be more careful about locking the back door at night. 如果我是你的話,我會(huì)多加小心,晚上鎖好后門?! ?,更差的 ,更差 I have seen (這個(gè)習(xí)語一般用來表達(dá)正在討論的東西還不錯(cuò)。對照I’ve seen ,表達(dá)正在討論的東西不怎么樣) A:How do you like the play? A:你覺得這個(gè)戲怎么樣? B:Oh, I’ve seen worse. B:噢,我看過更糟的?! ?adj. 黃色的 n. 黃色 be yellow [口]膽小 例句:You don’t want to fight,you are yellow. 你不敢打,你這個(gè)膽小鬼。