it began to rain cats and dogs yesterday night, and it seemed not to stop whole night.
昨晚开始下起倾盆大雨来,一整夜下个不停。
it started to rain cats and dogs when i was about to leave the office.
我正要离开办公室的时候,外面下起倾盆大雨。
when we were well on the way, it began to rain cats and dogs .
野餐进行到一半时,天开始下起大暴雨,弄得每个人都湿透了。
in the middle of the picnic, it started to rain cats and dogs and everybody got soaked.
在野餐进行到一半时突然下起瓢泼大雨,每个人都成了落汤鸡。