黑市（black-market）

中文含义：指非法、未经授权的交易或销售活动，通常与违规行为有关。

英语词性：noun

美式音标： /blæk ˈmɑrkɪt/

同义词：underground market, clandestine market, illegal market

易混淆单词：grey market（指没有授权但不违法的销售活动）

双语例句：

1. In some countries, drugs are only available on the black market.
2. She tried to sell the stolen jewelry on the black market, but got caught by the police.
3. It is estimated that the black market for counterfeit goods is worth billions of dollars annually.
4. He lost his job and turned to the black market to make money.