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
Sometimes it sounds a little stubbon.
有时候，这显得有点固执。
Let's ask Mr. Jiang to answer that.
那件事我让蒋先生来答复。
This is supposed to induce pleasurable sensations in the elephant,
据说这是为了使象产生愉快的感觉，