it rains cats and dogs

• 大雨倾盆

it rains cats and dogs的用法和样例：

例句

1. It was pouring yesterday, so I didn't leave home.
   昨天大雨倾盆，所以我没离开家门半步。
2. Sometimes it keeps showering for a whole day.
   有时候整天大雨倾盆。