buy a lemon
买到次品或低质量产品
口语·表示买到次品
英文释义
to purchase something that turns out to be of poor quality or not as expected
例句
He bought a used car that broke down every week; it turned out he bought a lemon.
典故来源
源自20世纪初的美国俚语，'lemon'指外观诱人但实际有缺陷的东西，后特指劣质商品。