Translation of "Pint" in Chinese

Milk is sold by the pint.

牛奶论品脱卖。

Beer is sold by the pint.

啤酒论品脱卖。

I want a pint of beer.

我想一品脱啤酒。

You can't judge a person by appearance, just as you can't measure the sea with a pint pot.

人不可貌相，海水不可斗量。