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 |
