流星雨

例句：

1. 1. The meteor shower was visible from the observatory window.
   从天文台的窗户可以看到流星雨。
2. 2. This year's meteor shower is expected to be more active than last year's.
   今年的流星雨预计将比去年更为活跃。
3. 3. Meteors are often seen during a meteor shower, but they can also appear randomly.
   流星通常在流星雨期间出现，但也可以随机出现。