coal-mine的用法和樣例：
例句
- The country is short of known deposits of coal.
這個國家缺少已知的煤礦礦床。 - He sketched the coal miner in a few minutes.
他幾分鐘就畫了一幅那位煤礦工人的素描。
coal-mine的相關資料：
臨近單詞
coaldrop
coal
Coal-miners are a tough breed.
coal mine safety management system
Coal-gas will float a balloon.
coal bed methane emission quantity
coal mining with gangue backfilling
coal - rock interface recognition
coal poly - generation technology
Coalescing osteitis of petrous bone
coal-mining emulsifying explosive
coal seam reservoir characteristics
