Boghead (coal)
[化] 烟煤
🧩 词语组成解析
[机] 烟煤
🗣️ 情景例句
He'll be back soon.
他很快就回来。
What would you have done last night if you hadn't had to study?
如果昨晚你不必学习你会做什么？
Beyond two or three days, the world's best weather forecasts are speculative,
世界上最好的两三天以上的天气预报具有很强的猜测性，