comet

例句：

1. 1. The meteor shower was visible from the telescope.
   从望远镜里可以看到流星雨。
2. 2. The comet is a rare and fascinating object.
   这颗彗星是一种罕见的、令人着迷的天体。
3. 3. Comets are often associated with apocalyptic stories in mythology.
   在神话中，彗星常常与末日故事联系在一起。