您要查找的是不是：
- a nub of coal 一小块煤
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- The nub of the problem is our poor export performance. 问题的关键是我们出口贸易方面太差。
- China has a wealth of coal, iron and other minerals. 中国有丰富的煤、铁和其它矿产资源。
- The oven holds sufficient heat to fire up a fresh charge of coal. 炉里有足够的热量使新加进的煤燃烧起来。
- Indeed, that is really the nub of the problem. 确实，这也是问题的一方面。
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- This seam of coal reposes on a layer of clay. 这个煤层处于一层黏土岩之上。
- They use half a ton of coal every week. 他们每周消耗半吨煤。
- The yearly output of coal was quartered in a year. 煤炭年产量一年中减少到原来的四分之一。
- The country is short of known deposits of coal. 这个国家缺少已知的煤矿矿床。
- This mine only contains a small amount of coal. 这个矿仅蕴藏少量的煤。
- Yesterday I bought a ton of coal. 昨天我买了一吨煤
- The nub of the matter is that business is declining. 事情的实质是工商业在萎缩。
- He put in a liberal supply of coal for the winter. 他储存了足量的煤以便过冬。
- Indeed, this is the nub of the nurturists' argument. 确实，这就是营养学家们的争端所在。
- An inexhaustible supply of coal. 用之不竭的煤炭供应
- China has a wealth of coal,iron and other minerals. 中国有丰富的煤、铁和其它矿产资源。
