Knock at my window at eight o'clock and I'll be ready.8点钟敲我的窗，我会准备好的。There was a light knock at the door.有人在轻轻地敲门。They heard a knock at the front door.他们听到前门有人敲门。...
The birds are additionally protected in the reserves at Birsay.鸟类在伯赛的保护区尤其受到保护。You can pay bills over the Internet. Additionally, you can check your balance or order statements.可以在网上支付账单。此外，还能查对余额或订货结算单。The maintenance p...
The most unusual car was a Benz which had only three wheels.最奇特的小汽车是一辆只有三个轮子的本茨牌小汽车.I'm going to buy a Benz.我要去买一部奔驰车.How does the principal have a golf course, a villa and a Mercedes - Benz?校长怎么会有高尔夫球场, 别墅,还有奔驰车?...
If the gyro tilts, the mercury is subjected to components of gravity which vary harmonically.如果陀螺转子发生倾斜, 水银受按简谐运动变化的重力分量的作用.Thirdly, the seam - tracking harmonically controlling algorithm of robot is designed.第三, 设计了机器人焊...