black gold

中文含义：黑金，原指石油。也可指其他具有高度价值的物质。

英语词性：noun phrase

美式音标： /blæk ɡoʊld/

同义词：petroleum, oil

易混淆单词：black diamond、black magic

双语例句：

1. Crude oil, also known as black gold, is one of the most valuable natural resources.
2. 这桶黑金被称为世界上最昂贵的液体。
3. Drilling for black gold has become a controversial issue due to its impact on the environment.
4. 在环境影响方面，钻探黑金已经成为一个具有争议的问题。