2.Small meteorites have left impact craters all over the planet’s surface.
这个星表面布满了小块陨石留下撞击坑。
3.One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.
地球外存在生论是基于陨星上存在碳化合物质这一事实。
4.If you look over the element ratios we measured, you might conclude that our comet particles look more like chondritic porous IDPs than CI chondrite meteorites.