She rocks back and forth on her chair like a mischievous child.
她像个顽皮的孩子似的,坐在椅子上来回摇晃。
《柯林斯高阶英汉双解学习词典》
But as the host went back and forth, he scrutinized the traveller.
但是,旅舍主人去了又来,来了又去, 总在打量这位旅客.
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A metal ring that moves freely back and forth on a rope, rod, or spar.
滑环在一根绳 、 杆子或圆材上可以自由来回移动的金属环.
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Thus the snakes were able to switch back and forth between the two systems.
如此看来,蛇能够在两种系统之间转换自如.
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He began rocking back and forth happily like a handsome child in a high chair.
他象个坐在高脚椅里的伶俐孩子那样快活地前后摇晃起来。
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We see an extremely excellent scene of the fire dragon shuttling back and forth among fireworks.
焰火中,火龙穿梭,火花四射,异常精彩.
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