相关单词近义词 coalmine 煤矿, seam 缝, mine 我的, pit 坑, colliery 煤矿(包括建筑物和设备在..., excavation 挖掘临近词coalbox, coal, coal-water hole, coalmine flooding, coal lane protect, coal-dust brick, Coal mine closure, coal-field fire, coal- air ratio, Coal slimes water, coal-fired unit, coal seam hosting相似词coal-fired, coalesce, coalescence, coalface, coalition, coarctation of the aorta, coarse, coarsen, 返回 coalfield