The colonel rushed up to Earle, shaking his gun at him...上校冲向厄尔，朝他挥着枪。Mother ran round the room shaking up all the cushions when the doorbell rang.母亲正在屋里跑来跑去忙着拍松所有的坐垫, 这时门铃响了。My heart is throbbing and I'm shaking.我的...
The device had been used operationally some months previously.该设备几个月之前曾投入运行。The detector must be operationally simple, reliable and robust.探测器必须操作方便, 可靠而牢固.These three different methods of QE are conceptually distinct bu...