asteroids造句
Iftherewerenoasteroidswouldtherebenoextinctions?Planets,asteroids,andsatellitesshinethroughthereflectionofsunlight.Butasteroidsweregenerallythoughttobedry.Oratleastfrost-free.Thereportfirstdealswithas...
Iftherewerenoasteroidswouldtherebenoextinctions?Planets,asteroids,andsatellitesshinethroughthereflectionofsunlight.Butasteroidsweregenerallythoughttobedry.Oratleastfrost-free.Thereportfirstdealswithas...