Calcium orthodisilicate
[机] 原二硅酸钙
🧩 词语组成解析
🗣️ 情景例句
That's where our difficulty lies.
那就是困难所在。
What is the style of furture?
这是什么样式的家具？
In the afternoon, classes are over at 3:30, and I get home at about 4:00.
下午三点半下课，我大概四点到家。