buy a pig in a poke
常见例句
- Never buy a pig in a poke.
千万别买袋子里的猪。 - As a careless person, she always buy a pig in a poke.
她是位粗心大意的人，常常买些不值得的东西。 - I must have a look at the bicycle before I pay for it; I don't want to buy a pig in a poke.
我得先看一下自行车再去付款，我不想还没有看到东西就把它买下来。
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