Sillimanite
n. 硅线石\\n[化] 硅线石
🗣️ 情景例句
that will bring parents and teachers together once a week
让家长们及教师每星期一次
The industrial area is centered largely in the north.
大部分工业区域集中在北方。
The city at one time must have been prosperous, for it enjoyed a high level of civilization.
这座古城肯定一度很繁荣，因为它曾享有高度的文明，