cat /kæt/ n.［c］猫：When the cats are away, the mice will play.［谚］猫儿不在家，老鼠要造反。A cat in gloves catches no mice.［谚］戴着手套的猫抓不到老鼠(不下功夫难有成就)。rain cats and dogs 下倾盆大雨：In the middle of the picnic it started to rain cats and dogs, and everybody got soaked. 在郊游活动的中途下起了倾盆大雨，大家都淋透了。