它使火车在通过现有轨道的弯曲处时得以保持恒定的车速。It allows the train to maintain a constant speed through the twists and turns of existing track.实2p轨道的形状是两个分开的变形的椭球.The shape of a real 2 p orbital is two separated, distorted ellipsoids.必须修改贯穿式...
Levin sat there, an expression of sadness on his face.莱文坐在那里，神情悲伤。Your friend Dr. Levin helped straighten my thinking.你的朋友莱文大夫帮助我把思想澄清了.Rick Levin : Well, he himself has spoken on this subject.理查德·莱温: 他自己提到过这件事....
Fred: It's true. But the total counterpoint is so pianissimo.你说得没错. 但是总的复调旋律是非常轻柔的.Luckily, Sue is very efficient and does an excellent job as Fred's personal assistant.幸运的是，作为弗雷德的私人助理，休办事效率很高，工作很出色。Fred: You m...