Scoria
n. 铁渣, 矿渣, 火山渣
✅ 同义词
🗣️ 情景例句
They'll be at your door within a few minutes.
他们会尽快送到你的门口。
Practice is better than precept.
身教胜于言教。
That's why I didn't see the sign.
所以我才没看见那牌子。