Ferricrete
铁砾岩; 铁质壳; 铁质砾岩
🗣️ 情景例句
Even when I have a cold, I still have a good appetite.
我就是感冒了，胃口也照样很好！
I subscribed to a lot of periodicals last year.
去年我订了许多期刊。
I'm thinking.
我在思考。