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backward and forward    我要挑错精准翻译

参考词典中backward and forward的常规释义:

基本释义
  • ad. 来回地(前后地)
英英解释
  •  1个副词解释

    1. moving from one place to another and back again
      [同] back and forth, backward and forward, to and fro
      [例]
      • he traveled back and forth between Los Angeles and New York
      • the treetops whipped to and fro in a frightening manner
      • the old man just sat on the porch and rocked back and forth all day
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