Borolon
合成氧化铝(用作磨料、耐火料或助滤物)
🔁 扩展释义
【化】 合成氧化铝; 人工氧化铝
🗣️ 情景例句
I am studying two majors, and it's quite a burden on my time.
我有两门主修课，这占据了我很大一部分时间。
I have received a letter from my cousin.
我收到了我表兄的信。
the line that the pen was drawing wriggled from side to side.
笔所画出的线就会左右摆动。