noun 下载 🔗分享 肉红玉髓 Sard Examples : "The artisan polished the sardius until its reddish-brown color shone brightly. " 工匠打磨那块肉红玉髓,直到它红褐色的光泽闪闪发亮。 mineral material 与AI对话词汇游戏阅读练习