noun🔗Share钴, 钴元素. A chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal."The artist used cobalt to create a vibrant blue pigment for her painting. "那位艺术家用钴这种金属元素来创作她画作中鲜艳的蓝色颜料。elementmaterialsubstancechemistryChat with AIVocabulary GamePractice Reading
noun🔗Share钴蓝，钴蓝色。 Cobalt blue."The artist used cobalt to paint the ocean a deep, vivid blue. "这位艺术家用钴蓝颜料把大海画成了深邃而鲜亮的蓝色。colormaterialChat with AIVocabulary GamePractice Reading
