cats and dogs n.价值低的股票,不值钱的.卖不掉的商品 例句用法: It's raining cats and dogs outside. 外面正下着倾盆大雨. Cats and dogs have quite different natures dogs like company,cats are independent. 猫和狗的习性迥异－－狗喜欢有伴,猫爱独来独往. In the middle of the picnic it started to rain cats and dogs,and everyone got soaked. 野餐进行到一半时,下起了倾盘大雨,大家都被子淋得湿透了.
