屋顶的两面斜面都有破瓦片.On both slopes of the roof there are broken tiles.伽利略让小金属球从斜面滚下.Galileo rolled small metal balls down the incline.图3.21画出了平行于斜面的、相互保持平衡的几个力.Figure 3.21 shows the forces parallel to the plane that are respons...
她一副遭人遗弃和背叛的样子。She had the look of someone deserted and betrayed.她又高又瘦，一副精明过人的模样。She was thin and spare, with a sharply intelligent face.她想象着他噔噔噔地走向车子，一副自以为是的模样。She visualized him stomping to his car, the picture of self-...