A bus shuttles passengers back and forth from the station to the terminal.

一辆公共汽车在火车站和公共汽车终点站之间往返运送旅客。

《牛津词典》

Rain gathered in a lotus leaf, like Yinzhu rolling back and forth in the above.

雨水聚集在荷叶上，像银珠在上面来回滚动。

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The prosecution and defence were bandying accusations back and forth.

原告与被告你来我往，互相指责。

《柯林斯英汉双解大词典》

The road moves back and forth and around corners as it moves up the face of the mountain.

VOA: special.2010.09.08

These two oscillate back and forth so the moment of deprivation is often then balanced by a moment of imagination.

来回交替丧失的时刻,经常和想像的时刻,互相平衡。

耶鲁公开课 - 1945年后的美国小说课程节选

Because there are ions moving back and forth, there's a current that flows and there's a electrical potential that's generated.

由于离子的进进出出,就产生了电流流动,并且形成了电势差

耶鲁公开课 - 生物医学工程探索课程节选

Zebras, rhinos and elephants roam the fields, while big cats nervously pace back and forth in cages.

BBC: Inside Pablo Escobar��s Medell��n cartel

And people were just making a lot of money, trading it back and forth, in and out.

NPR: Wall Street Too Real? Try Fantasy Investing

And there's a lot of back and forth - of trade and people - between the two.

BBC: Scotland: Treasury wants a pound for a pound