noun 下载 🔗分享 钴, 钴元素. A chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal. Examples : "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。 element material substance chemistry 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 钴蓝,钴蓝色。 Cobalt blue. Examples : "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。 color material 与AI对话词汇游戏阅读练习