The precipitous drop in coal prices last year as the world economy swooned has delayed some projects.
而去年全球经济衰退造成的煤价暴跌延误了一些工程。
2
Local residents sometimes burn coal to keep warm when temperatures drop.
气温下降时，当地居民有时烧煤取暖。
3
The drop in the amount absorbed is equivalent to 405m tonnes of carbon or around 60 times the annual output of Drax coal-fired power station, which is the largest in the UK.