Collinite
凝胶煤素质; 无结构腐殖体
🗣️ 情景例句
Our company has had a big business in Chinese arts and crafts.
我们公司经营大宗中国工艺品。
Why did you go there?
你为什么去那儿？
It usually comes in February or March. Summer is often very hot.
通常在2月或3月开始。夏天很热。