He lived long enough to see in the new millennium.他活到了新千年.The whole world was counting down to the new millennium.全世界都在倒计时迎接新千年的到来.Acupuncture was practised in China as long ago as the third millennium BC.中国早在公元前3,000年就已...
加速度和速度都是矢量。Acceleration and velocity are both vectors.所有太空人都应能承受加速度.All spacemen must be able to bear acceleration.摆式加速度计的设计与陀螺设计有很多共同之处.The pendulous accelerometer design had much in common with the gyro design....
Where Marcella lives, the rents are fairly cheap, but a little further north it'sa different story.玛塞拉居住的地方，租金比较便宜，但稍稍再往北一点情况就不同了。Marcella : I don't know, darling . Things are different now.我不知道, 亲爱的. 现在不同了.Mar...