Subject: Don’t buy a poke in a pig.

　　第一、迷你对话

　　A: Honey, don’t buy a poke in a pig.

　　亲爱的，不要冲动买那些无非所值的东西。

　　B: But I always cannot control myself.

　　但是我总是控制不了自己。

　　第二、地道表达

　　to buy a poke in a pig

　　1. 解词释义

　　To buy a pig in a poke 字面意思是“购买了自己根本看不到的东西”(to buy something which youcannot see)，引申为“买了自己对其真实性能一点都不熟悉的东西”(to buy something whose truenature is unknown)。可译为：乱买一气、乱买东西、瞎买东西、 扪椟估珠等。

　　2. 拓展例句

　　e.g. I want to see the tennis racket before I agree to the price. I don't want to buy a pig in apoke.

　　我想先看看网球拍然后才能接受这个价位，我可不想胡乱买东西。

　　e.g. Buying a car without trying it by yourself is just like buying a pig in a poke, isn't it?

　　买车时自己试都不试，这不是太仓促了吗?

　　e.g. She often goes to town to buy a pig in a poke.

　　她经常进城乱买一气。