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。
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。
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。
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。
You got to work back and forth with people a lot.
你常常要来回地跟别人工作。
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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