语法与词汇 Also called natural gas, methane is released from landfills, from coal mines and rice paddies, frombillions of termites that swarm through the freshly cut forestland…无

【正确答案】Landfill means a large deep hole in which very large amounts of rubbish are buried.

【答案解析】句意：甲烷也被称作天然气，它从垃圾填埋场、煤矿、稻田、在刚被砍掉的林地中泛滥的白蚁群中释放出来。 landfill指“垃圾填埋场”。