Boghead (coal)
[化] 烟煤
🧩 词语组成解析
[机] 烟煤
🗣️ 情景例句
I'm glad I ran into you. Where have you been hiding lately?
我很高兴碰见你，你躲到哪里去了？
Man is to man either a god or a wolf.
人与人交往，不是上帝就是狼。
Rescue workers are therefore drilling a hole on the north side of the mine.
因此，营救人员在矿井的北侧钻了一个洞。