Waugh was a duffer at cricket.沃的板球打得很臭。" Aw, let me go,'she exclaimed angrily . " Duffer. "“ 呸, 松手! " 她愤怒地叫了起来,"你这个笨蛋.About morals , I mean , of course, you can't beat the old duffer.道德方面的问题, 你当然糊弄不了那笨蛋....
1818年菲涅耳参加了法国科学院主办的一次竞赛.In 1818 Fresnel entered a competition sponsored by French Academy.菲涅耳通过加进来干涉概念,解决了这个困难.The difficulty was resolved by Fresnel with his addition of the concept of interference.在许多情况下, 对于我们的目的来说,更简单...