2. 职称英语
  3. Dishwashers and washing machines do jobs that were once done by the hand.the一/by

Dishwashers and washing machines do jobs that were once done by the hand.the一/by

游客2024-12-29  1
问题 Dishwashers and washing machines do jobs that were once done by the hand.
选项
答案 the一/
解析 by后直接加名词，不用定冠词，表示通过某种方式．此处by hand表示“人工工作”。其他类似词组by bike，by car等等。加定冠词后特指某一只手，如Although he only has the left hand，he can do all the jobs by the hand．
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