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
I waited for you for about a quarter of an hour.
我等了你差不多一刻钟。
I can't believe his story.
我无法相信他的说法。
Thanks a lot.
非常感谢。