noun 下载 🔗分享 熔渣，矿渣。 The slag or dross that remains after the smelting of metal from an ore. Examples : "After the iron ore was melted, the scoria was skimmed off the top, leaving the pure metal below. " 铁矿石熔化后，浮在表面的矿渣被撇去，留下了下面的纯金属。 geology material substance industry 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 火山岩，浮石 Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater. Examples : "After hiking near the volcano's crater, we saw a lot of black, rough scoria scattered on the ground. " 在火山 crater 附近徒步后，我们看到地上散落着许多黑色粗糙的火山岩。 geology material 与AI对话词汇游戏阅读练习
