back and forth 来回地
双语例句原声例句
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She passed the needle through the rough cloth, back and forth.
她用针在那块粗布上来来回回地穿进穿出。
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They continue calling back and forth until they all find each other again.
他们不停地来回打电话，直到他们再次找到彼此。
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ChiChi ran back and forth in front of his chair, straining at his leash as if to run down the beach.
芝芝在他的椅子前面来来回回地跑，奋力拉扯皮带，似乎想跑下海滩。
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So, when you think about resonance structures, some students tend to just get confused and be picturing this flickering back and forth.
那么，当大家想象共振结构的时候，有些同学很容易被弄晕,不停地来回想象。
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You got to work back and forth with people a lot.
你常常要来回地跟别人工作。
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That's the finger thing from left finger to right finger going back and forth across the board, never touching a number more than once.
在合并时，我的左手手指,和右手手指来回地在黑板上移动，但对每个数字只会碰到一次。
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