它的振动幅度取决于引力场的强度。Its oscillation depends on the strength of the gravitational field.振动幅度的大小决定声音的大小.The amplitude of the vibration determines the loudness of the sound.膜片振动,这使得周围的空气也动荡起来.The diaphragm vibrates , thus setti...
He found the room in disarray, with food dumped on the floor and drawers pulled open.他发现屋里凌乱不堪，地上丢弃着食物，抽屉大开。When the shirts were clean, I ironed them myself, aired them and placed them in drawers in his room.衬衫洗干净之后，我自己将...
Spencer waded through the debris of broken chairs and beer bottles.斯潘塞艰难地迈过一堆破椅子和碎啤酒瓶。Marks & Spencer will be unveiling its latest fashions for autumn and winter.玛莎百货的最新款秋冬季时装即将亮相。Spencer scuttled away from Young to shoo...