-
(单词翻译:双击或拖选)
You can see the planet Jupiter on a clear night, but Jupiter is humongous. Mars and Mercury are smaller than that, and you can see them, too. Wait a minute, our moon is even smaller, and you can see that. Could anything smaller than the moon be visible without a telescope? Actually, yes. Though it takes a lot of patience and excellent sky conditions, it is possible to see a tiny object called Vesta. Although it had a molten interior and volcanoes, Vesta isn’t a planet or a moon: it’s an asteroid1. Asteroids2 are stray chunks3 of rocky or metallic4 materials that orbit the sun but were never drawn5 into any of the planets.
1 asteroid | |
n.小行星;海盘车(动物) | |
参考例句: |
|
|
2 asteroids | |
n.小行星( asteroid的名词复数 );海盘车,海星 | |
参考例句: |
|
|
3 chunks | |
厚厚的一块( chunk的名词复数 ); (某物)相当大的数量或部分 | |
参考例句: |
|
|
4 metallic | |
adj.金属的;金属制的;含金属的;产金属的;像金属的 | |
参考例句: |
|
|
5 drawn | |
v.拖,拉,拔出;adj.憔悴的,紧张的 | |
参考例句: |
|
|