“块煤”用英语怎么说

要达到满意的块煤率, 关键是合理的截齿排列.To attain the satisfied lump coal rate, the key is reasonable picks - lacing.再往火里添几块煤.Put a few more lumps of coal on the fire.“我在土袋子里发现了几块煤. ”I found some pieces of coal in the sacks of dust!...