Question

下面关于动物的英文谚语翻译成中文是什么意思

a black sheep a cook and bull story be old dog at something goose egg
like a drowned rat like water off a duck's back to teach a fish how to swim
a litte bird told me that a white elephant donkey's years monkey uncle
rain dogs and cats a snake in the grass monkey business

Answer 1

a black sheep 害群之马
be old dog at something. 就是对...有经验; 对...很内行的意思。
goose egg【俚】零分
like a drowned rat 浑身湿透（象落汤鸡）
like water off a duck's back 毫不在乎，毫无作用（如果你对侮辱、指责之类的不在乎可以用，如：Terry said he was too sensitive about criticism and he wanted to be like one of those people for whom it’s like water off a duck’s back）
to teach a fish how to swim 班门弄斧
a litte bird told me that 我听说的；有人私下告诉我的（一般不愿说出来源时所用）
a white elephant无用的累赘东西；沉重的负担
donkey's years 很长的时间
monkey uncle吃惊
rain dogs and cats倾盆大雨
a snake in the grass 潜伏的敌人，口蜜腹剑的人
monkey business胡闹，骗人的把戏；欺骗；恶作剧

Answer 2

a black sheep 害群之马（败类）
be old dog at something 内行，有经验的
goose egg 零分
like a drowned rat 像落汤鸡
like water off a duck's back (对某人)不起作用
to teach a fish how to swim 班门弄斧
a white elephant 沉重的负担
donkey's years 长时间，很久
monkey uncle 吃惊
rain dogs and cats 倾盆大雨
a snake in the grass 潜伏的危险
monkey business 胡闹；不正当行为

a cook and bull story ，a litte bird told me that剩下这两个还真没学过，希望上面那些对你有帮助：）