Who set off the fire alarm?谁拉响了火警报警器？Then the fire alarm went off. I just grabbed my clothes and ran out.当时火险警报器响了，我一把抓起衣服就往外跑。It was thought that the fire alarm had been set off as a prank.人们认为火警报警器响是个恶作剧....
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...
他成了嘲弄和鄙视的对象。He became the object of ridicule and scorn.4天后，这位遭到鄙视的领导人终于下台了，离他就职只有17天。Four days later, the despised leader finally stood down, just 17 days after taking office.印江·乔埃脸上飞快地闪过一阵鄙视的微笑.A contemptuous smile flit...