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ADV
向后；往后；往回
If you move back, you move in the opposite direction to the one in which you are facing or in which you were moving before.
例句
The photographers drew back to let us view the body...
攝影師往后退開(kāi)，好讓我們查看尸體。
She stepped back from the door expectantly...
她滿(mǎn)懷期待地從門(mén)口退了回來(lái)。
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ADV
回到原處
If you go back somewhere, you return to where you were before.
例句
I went back to bed...
我回到床上。
I'm due back in London by late afternoon...
我預(yù)計(jì)下午晚些時(shí)候回到倫敦。
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ADV
恢復(fù)原狀；回到原來(lái)的狀態(tài)
If someone or something is back in a particular state, they were in that state before and are now in it again.
例句
The rail company said it expected services to get slowly back to normal...
鐵路公司表示，其運(yùn)輸服務(wù)將慢慢恢復(fù)正常。
Denise hopes to be back at work by the time her daughter is one...
丹尼絲希望等女兒滿(mǎn)周歲就回去工作。
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ADV
歸還；交還；放回；收回
If you give or put something back, you return it to the person who had it or to the place where it was before you took it. If you get or take something back, you then have it again after not having it for a while.
例句
She handed the knife back...
她遞還刀子。
Put it back in the freezer...
把它放回冰箱。
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ADV
（將鐘表）撥回
If you put a clock or watch back, you change the time shown on it so that it shows an earlier time, for example when the time changes to winter time or standard time.
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ADV
回應(yīng)（來(lái)信、電話(huà)、目光等）
If you write or call back, you write to or telephone someone after they have written to or telephoned you. If you look back at someone, you look at them after they have started looking at you.
例句
They wrote back to me and they told me that I didn't have to do it...
他們回信告訴我說(shuō)不必那么做。
If the phone rings say you'll call back after dinner...
如果有電話(huà)打來(lái)，就說(shuō)你吃完飯?jiān)倩仉娫?huà)。
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ADV
回到（某個(gè)話(huà)題）
You can say that you go or come back to a particular point in a conversation to show that you are mentioning or discussing it again.
例句
Can I come back to the question of policing once again?...
我能再回到維護(hù)治安的問(wèn)題上來(lái)嗎？
To come back to what I said in the Introduction, in the nineteenth century Spain was fully a part of Europe...
回到我在導(dǎo)言中所說(shuō)的，19世紀(jì)的西班牙是歐洲整體的一部分。
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ADV
再次流行；再度成為潮流
If something is or comes back, it is fashionable again after it has been unfashionable for some time.
例句
Short skirts are back...
短裙又流行起來(lái)了。
Consensus politics could easily come back into fashion.
共識(shí)政治很可能再度興起。
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ADV
在一段距離之外
If someone or something is kept or situated back from a place, they are at a distance away from it.
例句
Keep back from the edge of the platform...
請(qǐng)勿靠近站臺(tái)邊緣。
I'm a few miles back from the border...
我距離邊境數(shù)英里。
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ADV
收攏；攏起；束起
If something is held or tied back, it is held or tied so that it does not hang loosely over something.
例句
Her hair was tied back...
她的頭發(fā)扎了起來(lái)。
The curtains were held back by tassels.
窗簾用穗子攏了起來(lái)。
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ADV
（舒適地）向后仰
If you lie or sit back, you move your body backwards into a relaxed sloping or flat position, with your head and body resting on something.
例句
She lay back and stared at the ceiling...
她躺下盯著天花板。
She leaned back in her chair and smiled.
她靠在椅背上，微笑起來(lái)。
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ADV
回頭，轉(zhuǎn)身（看或喊）
If you look or shout back at someone or something, you turn to look or shout at them when they are behind you.
例句
Nick looked back over his shoulder and then stopped, frowning...
尼克回頭看了看，又皺著眉頭停了下來(lái)。
He called back to her.
他轉(zhuǎn)身叫她。
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ADV
（表示描述場(chǎng)所的轉(zhuǎn)換）在曾提到過(guò)的地方
You use back in expressions like back in London or back at the house when you are giving an account, to show that you are going to start talking about what happened or was happening in the place you mention.
例句
Meanwhile, back in London, Palace Pictures was collapsing...
與此同時(shí)，倫敦的皇宮影業(yè)公司也正在分崩離析。
Later, back at home, the telephone rang.
隨后，家里的電話(huà)響了。
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ADV
以前；過(guò)去；追溯至
If you talk about something that happened back in the past or several years back, you are emphasizing that it happened quite a long time ago.
例句
The story starts back in 1950, when I was five...
故事可以追溯到1950年，那時(shí)我才5歲。
I was in St. Lucia back in January of this year...
今年1月份我在圣盧西亞。
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ADV
回想；回憶
If you think back to something that happened in the past, you remember it or try to remember it.
例句
I thought back to the time in 1975 when my son was desperately ill...
我回想起1975年我兒子病得奄奄一息的那段時(shí)間。
My mind flew back to stories I had heard about Vinnie.
我回想起曾聽(tīng)到過(guò)的關(guān)于文妮的那些傳聞。
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PHRASE
來(lái)回；往返
If someone moves back and forth, they repeatedly move in one direction and then in the opposite direction.
例句
He paced back and forth...
他來(lái)回踱步。
Two boys were in the street, tossing a baseball back and forth.
兩個(gè)男孩在街上來(lái)來(lái)回回地投接棒球。