习惯用语a rough diamond1.天然金刚石2.言行粗暴而心地善良的人3.[美俚]初露光芒的设想a diamond in the rough1.天然金刚石2.言行粗暴而心地善良的人3.[美俚]初露光芒的设想Irish diamond1.水晶diamond cut diamond1.以强制强; 棋逢对手diamond of the first water1.一等光泽的钻石; (喻)第一流的好人; 珍贵稀罕的物品diamond of the purest water1.一等光泽的钻石; (喻)第一流的好人; 珍贵稀罕的物品