霍顿向外望去,肥沃的谷地和平缓的丘陵尽收眼底。Horton looked out over a panorama of fertile valleys and gentle hills.大平原上起初地势偶尔有些平缓的起伏.The foothills began as gentle rolls in the plain.但在倾角小,地形平缓的情况下,放大垂直比例尺是有用的.An exaggerated vertical scale is ...
你这小鬼!You young devil's spawn!我不能让他在别的小鬼面前觉得不光彩.I can't let him be ashamed before the other little brutes.我捧住那挺圆的脸蛋,说:“小鬼!I cupped his round face in my hands....
Within our own galaxy there are probably tens of thousands of planetary systems.在我们自己的星系里可能有数以万计的行星系。These bands must introduce longitudinal asymmetry in the planetary albedo.这些云带必定引起行星反照率的经向不对称性.The sciences of planetar...