Let the cat out of the bag
无意中泄露机密；说走了嘴; 露马脚
Please keep the secret for me. Don’t let the cat out of the bag.
请替我保守秘密。别说漏了嘴。
Curiosity killed the cat
好奇心害死猫； 过于好奇会惹祸上身
Please stop asking me. Don’t you know that curiosity killed the cat?
别再问我了。你不知道好奇心会害死猫吗？
Put/Set the cat among the pigeons
兴风作浪; 挑起纠纷；引起麻烦
Like a cat on a hot tin roof
如热锅上的蚂蚁; 坐立不安
When the cat's away, the mice will play.
山中无老虎，猴子称霸王; 猫儿不在，老鼠成精
Be the cat's whiskers
比别人都强；是最棒的
Fight like cat and dog
大吵大闹；争吵不休；争吵得很凶
This young couple always fight like cat and dog.
这对年轻夫妇总是吵吵闹闹的。
Has the cat got your tongue?
舌头让猫给叼走了吗？为什么不吭声？
Look like something the cat brought/dragged in
看起来很邋遢; 凌乱不整
Not have a cat in hell’s chance
毫无机会，根本不可能做到
Under such conditions, they haven’t a cat in hell’s chance of finishing the task.
在如此的情况下，他们根本不可能完成这项任务。
Play cat and mouse
玩猫戏老鼠的游戏；耍弄
Fat cat
大亨；阔佬；（尤指公司的）老板; 有财有势的大亨
No one knows that he is a fat cat who runs this big company.
没有人知道他是经营这家大公司的老板。
Cool cat
时尚的人
Cat burglar
（翻墙入户的）盗贼，飞贼
No/Not enough room to swing a cat
空间很狭小；（地方）连转个身都困难
Rain cats and dogs
下倾盆大雨
It’s raining cats and dogs outside.
外面下着倾盆大雨。
