diamond /ˈdaɪəmənd/ DJ 发音 /'daɪəmənd/ KK
noun
o
a clear colourless precious stone of pure carbon,the hardest substance known.Diamonds are used in jewellery and also in industry,especially for cutting glass.金刚石；钻石 uncountable countable
钻石用英语怎么说
diamond /ˈdaɪəmənd/ DJ 发音 /'daɪəmənd/ KK
noun
o
a clear colourless precious stone of pure carbon,the hardest substance known.Diamonds are used in jewellery and also in industry,especially for cutting glass.金刚石；钻石 uncountable countable