Collinite
凝胶煤素质; 无结构腐殖体
🗣️ 情景例句
Last but not least,
最后但同等重要的一样，
The X2500 will change your work in the office.
X2500将会改变你在办公室的工作。
Well, there are several things we could do.
唔，有几件事是我们可以做的。