Boghead coal
[机] 烟煤
🧩 词语组成解析
[机] 烟煤
coal
[kol]
n. 煤;煤块;煤堆;木炭;
vi. 上煤;加煤;
vt. 给…加煤;把…烧成炭;
🗣️ 情景例句
It's a problem, isn't it?
这确实是个问题，不是吗？
What's the temperature today?
今天的温度是多少？
Practice dialogues like these.
这样练习口语。