Coal petrography
[化] 煤岩学
🧩 词语组成解析
coal
[kol]
n. 煤;煤块;煤堆;木炭;
vi. 上煤;加煤;
vt. 给…加煤;把…烧成炭;
n. 岩相学
🗣️ 情景例句
If there's anything you need, just knock on my door.
有什么需要帮忙的话，尽管敲门来找我。
I'd appreciate it if you'd wait until be end for questions.
如果你等我做完再询问我会感激你的。
The officer in the control tower was very angry when he heard the news,
控制塔上的官员得知这一消息后，非常气愤，