streak - n. a long, thin mark that is a different color from its background​

meteor shower - n. a large number of rocks or metal pieces that burn and glow brightly in the sky as they falls from outer space into the Earth's atmosphere

astronomer - n. a person who studies the stars, planets, and other objects in outer space
 2/4   首页 上一页 1 2 3 4 下一页 尾页