Ferrolite
铁矿岩, 混凝土中铁质掺合料
🗣️ 情景例句
I'm having some trouble keeping food down.
我吃东西时感到困难。
I'm glad our negotiation has come to a successful conclusion.
我很高兴这次洽谈圆满成功。
Is it a black one?
是快黑的吗？