... be back and forth摇摆不定 B back and forth来回地 argument back and forth前后论证 ...
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... b back and forth 来回，往返，来来往往的 back abd forth mode 前后扫描方式 back and forth bending test 反复弯曲试验 ...
基于1个网页-相关网页
b back and forth
B来回
以上为机器翻译结果，长、整句建议使用 人工翻译 。
B. People were running back and forth. Obviously, something unusual had happened.
人们跑来跑去，显然发生了不寻常的事情。
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