Durinite
[地质]暗煤素质
🗣️ 情景例句
The welcome sign is up:
欢迎的标语已经弄好了：
A good beginning makes a good ending.
善始者必善其终。
Silicon Valley may prove a classroom for building a global business.
它很可能成为建立全球商业的一个教学场地。