他看着酒吧招待员备好他点的啤酒。He watched the barman prepare the beer he had ordered.酒吧招待员告诉我你星期二早上看见了安，对吗？The barman tells me you saw Ann on Tuesday morning. Is that right?招待员把客人引领进来.The usher led the guests in....
这些超高频能传送均衡的宽频信号.These extremely high frequencies allow proportionately wider band - width signals to be transmitted.用途: 用于超高频频率转换, 负载振荡器, 宽频放大.Purpose: UHF frequency converter, local oscillator, wide band amplifier.用途: 用...
Probably, however, Franklin is most famous today for his inventions lightning conductor.但今天最使他出名的或许是他的发明.The down sides to our inventions - the wars, weapons, holocausts, pollution - these too define our being.发明的阴暗面——战争...