black di·a·mond
noun/ˌblæk ˈdaɪmənd/
/ˌblæk ˈdaɪmənd/
- [countable] (British English, informal) a piece of coal
煤块 - [uncountable, countable] a dark form of diamond
黑金刚石；黑钻石 - [countable] (North American English) a slope that is difficult to ski down
黑钻石坡道（难以下滑的陡坡） - a black diamond run
黑钻石滑道
- a black diamond run