英语中猪“pig”的相关表达
 
You can put lipstick on a pig, but it is still a pig.  “给猪涂上口红,它还是猪。”意思是做无用功。

A hog in a silk waistcoat is still a hog.  某项政策、措施或行动并不能改变事情的本质，甚至更为糟糕。

You cannot make a silk purse out of a sow's ear.  粗瓷碗雕不出细花来

in a pig's eye   某件事根本不可能发生

casting pearls before swine   明珠暗投；对牛弹琴

piggy bank  储蓄罐

high on the hog  奢侈地；豪华地

hog-wild  （美国俚语）极粗野的，疯狂的，发疯的

hog  贪心攫取；独占

road hog  自私的司机；鲁莽的驾驶员

earmarks  指定款项

pork  联邦或州政府给手下人的好处(金钱或位置)

bring home the bacon  养家糊口；谋生

pig out / make a pig of oneself  大吃大喝

When pigs fly  无稽之谈；不可能的事

go the whole hog  干到底；彻底地干

ground hog  土拨鼠 www.rr365.com

bleed like a pig  血流如注

buy a pig in a bag  没有仔细看货就买下来；盲目答应

get the wrong pig by the tail  [美]捉错了人;；怪错了人;；搞错了对象

give sb. a pig of his own sow   以其人之道还治其人之身

sell a pig in a poke  用欺骗手段出售货品; 挂羊头卖狗肉

sweat like a pig  (因出力或恐惧而)全身冒汗

teach a pig to play on a flute  教猪吹笛, 做荒唐[不可能]的事

What can you expect from a pig but a grunt.   狗嘴里吐不出象牙来。

相关文章:猪的英语谚语
eats like a pig..吃得像猪一样，又多又难看
很早以前我就懂得，永远不要与猪争斗。因为你会弄得很脏，而猪就喜欢你这样。
I learned long ago, never to wrestle with a pig. You get dirty, and besides, the pig likes it
有关猪的英语习语
pigs might fly无稽之谈，奇迹可能会发生
“The management might offer us a decent pay rise.” “Pigs might fly！”

buy a pig in a poke (未见实物而)乱买东西(吃了亏)
You'll have to show me the car; I don't intend to buy a pig in a poke

人怕出名猪怕胖。
A famed person and a fattened pig are alike in danger.

还有一种翻译方法：
People are afraid of being famed just as the pig is afraid of being fat.

我觉得前面是个比较地道的说法，很多谚语书上都有。
 星沙英语