1. Coal prices also are low, owing to oversupply and the scaling-down of demand, especially from China, which bums half of the world's coal. 煤炭价格也很低，原因是供应过剩和需求下降，尤其是来自中国的需求，中国消耗了全球一半的煤炭。
2. Oversupply can take many forms. 过度供给可以多种形式存在。
3. Is there a shortfall or oversupply? 是否有供应不足或者供给过多？
4. Another potential snag is oversupply. 另一种潜在障碍则是供应过量。
5. But the oversupply means that prices will keep falling. 但过度供给意味着价格还将继续下跌。
