front and back
- 前后：指从发音的角度来看，音素可以被描述为前后。前元音指的是向口腔前部发音的元音。这既可以指比较前的元音，也可以指只有完全前的元音，即尽可能向前部发音的元音。后元音也有类似的区分，可以指比较后的元音，也可以指只有完全后的元音，即尽可能向后部发音的元音。然而，从声学角度来看，中央元音和后元音之间几乎没有区别，因此这两者经常被归为更广泛的“后元音”类别，或者被归为“非前元音”类别。
双语例句原声例句权威例句
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I think I'll get one of those new T-shirts, with the school's logo on both the front and back.
我想我会买一件那种新 T 恤，正面和背面都有学校的标志。
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You can do this with your calf muscles, thigh muscles (front and back), chest, abdomen, buttocks, shoulders and back.
你可以对你的小腿肌肉、大腿肌肉（前面和后面）、胸部、腹部、臀部、肩部和背部这么做。
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You may use both the front and back of the paper.
你可以使用纸张的正反面。
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Amazingly,in addition to heavy strongboxes and baggage, a Concord stagecoach could carry as many as 18 people, squeezed inside and up top, front and back.
VOA: standard.2010.03.11
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And I think of that front and back of the page as another kind of knight's move. You think you're looking at one thing, and you land on another.
这让我想到这页的开头和结尾都是一种迂回前进,你认为你正在看某样事物,事实上你在看另一个。
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How do they decide who went in front and who went in the back?
他们怎么决定谁站前面谁站后面
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