as
te
roid
复数形式
asteroids
1
小行星, 岩石天体
any of the rocky bodies orbiting the sun, ranging greatly in diameter, also found in large numbers between Jupiter and Mars
- Scientists study asteroids to learn about the early solar system and potential threats to Earth.
科学家研究小行星以了解早期太阳系和对地球的潜在威胁。
- Asteroids vary in size from tiny fragments to large bodies hundreds of kilometers across.
小行星的大小从微小碎片到直径数百公里的大型天体不等。
- The asteroid impact that led to the extinction of the dinosaurs occurred approximately 66 million years ago.
导致恐龙灭绝的小行星撞击发生在大约6600万年前。
- NASA's mission to study the asteroid Bennu aims to gather data that could help protect Earth from future asteroid impacts.
NASA研究小行星Bennu的任务旨在收集可能有助于保护地球免受未来小行星撞击的数据。
- Some asteroids contain valuable minerals and resources that could be mined in the future.
一些小行星含有未来可开采的有价值矿物和资源。