Keramzite
素烧粘土填料, 有孔粘土, 陶结块
🗣️ 情景例句
Don't be lazy, the older you get, the harder it will be to learn.
别偷懒，年纪越大，学起来就越难。
Hello. Is Mrs.James in, please?
喂，请问詹姆斯太太在家吗？
After a short while he started directing films himself.
不久，他开始自己导演电影。