煤矿中天然存有高爆气体。Highly explosive gas is naturally found in coal mines.许多人到煤矿来,是因为契约规定必须服务几年.Many people came to the coal mineindentured for several years.煤矿工人须在地下工作.Coal miners have to work under the ground....
他们的不少期货都还是个问号。A question mark hangs over many of their futures.当局是否允许检查还是个大问号。Whether the authorities will allow inspection is highly doubtful.这个案子还是个问号.This case is still unknown....