noun 下载 🔗分享 燧石,火石。 Flint. Examples : "The ancient toolmaker chipped at the silex to create a sharp blade. " 古代的工具制造者敲击着燧石,想打造出一个锋利的刀刃。 geology material mineral 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 硅石粉,石英粉 A finely ground relatively pure form of silicas used as a paint filler etc. Examples : "The artist used a special kind of silex to make the paint for her artwork more opaque. " 艺术家使用了一种特殊的硅石粉,让她的画作颜料更加不透明。 material substance chemistry mineral 与AI对话词汇游戏阅读练习