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英语翻译Miss Rose taught physics in a London school.Last week sh

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英语翻译
Miss Rose taught physics in a London school.Last week she was explaining (解释)to one of her classes about sound,and she decided to test them to see how successful she had been in her work.She said to them."Now,I have a sister in Washington.If I was calling her on the telephone,and at the same time you were 20 meters away ,and listened to me from the other side of the street,who would hear what I said earlier,my sister or you,and why?"
  The cleverest boy at once answered."Your sister,Miss Rose,because electricity(电) travels faster than sound waves(波)."
  "That's very good."Miss Rose answered.But then one of the girls put up her hand,and Miss Rose said."Yes,Betty.""I don't agree."Betty said,"your sister would hear you earlier because when it's eleven o'clock here,it's only six o'clock in Washington."
柔丝小姐在伦敦一所学校教物理.她的一个类声音的人,她决定测试他们看到成功的她已经在她的工作.她对他们说.“现在,我有一个姐姐在华盛顿.如果我是叫她在电话,同时你是20米远的地方,听我从街道的另一边,谁会听我说,我妹妹或者你早些时候,为什么?“最聪明的男孩立刻回答.“你妹妹,柔丝小姐,因为电力(电)传播速度比声波(波).”“那是非常好的.“柔丝小姐回答.然后一个女孩举起她的手,柔丝小姐说.“是的,贝蒂.”“我不同意.”贝蒂说,“你的妹妹会听到你因为当它早些时候11点在这里,只有6点钟在华盛顿.”