在英文中，有很多关于动物的俚语表达，今天我们一起来学习一下吧！

Dog狗
Top dog（尤指竞争中的）夺魁者，优胜者
例句：Reynolds has never concealed his ambition to be the top dog.
雷纳尔德从不掩饰他要成为领军人物的雄心。
相关俚语

Love me, love my dog 爱屋及乌
Dog watch 夜班
Let sleeping dogs lie 不要惹是生非

Lion狮子
Lionhearted–brave and determined
狮心的--勇敢而坚定的
例句：During the crusade, the king of England, Richard the Lionhearted was captured when he was on the way back to England.
当时，正值十字军东征，著名的英国国王狮心理查德在返回英国的途中被敌人一名亲王俘虏。
相关俚语
The lion’s mouth 虎穴
Throw food to the lion 送入虎口
A lion in the way 拦路虎

Rat鼠
Rat race - an exhausting and repetitive routine, a hectic struggle for success
疯狂竞争一令人精疲力竭、重复性的日常活动，一场为成功而进行的激烈的斗争。
例句：She started to work from home as she couldn’t stand the rat race at the office.
她开始在家工作，因为她无法忍受办公室里的激烈竞争。
相关俚语
Love rat 爱情骗子
Dirty rat卑鄙小人
Rat sb out 出卖某人

Cat猫
Cat burglar - a stealthy burglar who climbs into buildings, usually through upper windows, skylights, etc.
飞贼—潜入建筑物的窃贼，通常通过上部窗户、天窗等进入建筑物。
例句：The inspector was surprised by the exploits of a cat burglar who only stole from upper floors and attics.
探长对一个只从楼上和阁楼偷东西的飞贼的行为感到惊讶。
相关俚语
A cat nap 打个盹儿
Kitty Corner斜对角
A fat cat 大款

Cow牛
Cash cow - a dependable source of income; a product or service that makes money
摇钱树—可靠的收入来源；赚钱的产品或服务
例句：The publisher saw the new bestseller as a cash cow.
出版商把这本新畅销书看作是摇钱树。
相关俚语
Don’t have a cow别大惊小怪
till the cows come home 过了很久

Fish鱼
Fish story - an extravagant or incredible story
吹牛—荒诞不可置信的故事
例句：Nobody could believe his fish story.
没有人相信他的的连篇鬼话。
相关俚语
Bigger fish to fry 有更重要的事要办
Drink like a fish 牛饮
Cold fish 冷血