Astronomers used to ask why only Saturn has rings.天文学家们过去一直感到奇怪,为什么只有土星有光环.Saturn was to launch the 15 th flight, a Moon orbital mission.第15次飞行利用萨杜恩将飞船送人月球轨道.The Saturn family of launch vehicles falls into three types or...
Saturn was to launch the 15 th flight, a Moon orbital mission.第15次飞行利用萨杜恩将飞船送人月球轨道.Explanation: What does the surface of Saturn's ice - spewing moon Enceladus look like?说明: 土卫二,这颗会喷出冰的土星卫星表面长什么样子?Planetary scientist...
不清楚飞机是坠毁在陆地上还是海里。It isn't clear whether the plane went down over land or sea.伊德里斯大声地宣告说：“在海里，谁落在最后谁就不是爷儿们。”"Last one in the sea is a sissy," proclaimed Idris.我转身向海里又游了几下。I turned and swam a few strokes further out t...
人们会在中国古代的青铜器 、 占卜栻盘 、 纹饰图案、建筑标记上普遍地见到.Such symbols are commonly seen ancient Chinese bronze wares, divination plates, donate patterns or building marks....
There have been growing signs of a ra-pprochement with Vietnam.同越南恢复友好关系的迹象越来越明显了。Vietnam has emerged as the world's third-biggest rice exporter.越南已跃居世界第三大稻米出口国。Money will also go into local development projects in ...