main belt 主小行星带
near-Earth asteroid 近地小行星
asteroid belt 小行星带
asteroid impact 小行星撞击
asteroid mining 小行星采矿
1. The telescope spotted several new asteroids in the asteroid belt.
望远镜在小行星带中发现了几个新的小行星。
2. Scientists are studying asteroids to understand the early history of the solar system.
科学家正在研究小行星以了解太阳系的早期历史。
3. The movie depicted a dramatic scene where asteroids were deflecting away from Earth.
这部电影描绘了一个惊心动魄的场景，小行星正被推离地球轨道。
A: Did you know that some asteroids are large enough to have their own moons?
A：你知道有些小行星大到拥有自己的卫星吗？
B: Yes, and scientists hope to mine them for rare minerals in the future.
B：是的，而且科学家希望将来能开采它们以获取稀有矿物。
1) 天文学中指小行星
2) 指小行星带中的天体
3) 在科幻作品中常指太空岩石碎片
1. n. 小行星
e.g. The spacecraft passed by several large asteroids.
宇宙飞船经过了几颗巨大的小行星。
noun
1. a small rocky object orbiting the sun, especially one of the many objects between the orbits of Mars and Jupiter.
Synonym: minor planet, planetoid