a cob of coal的用法和样例：
- He put a shovel of coal on to the fire.
- We had a big delivery of coal today.
- China has a wealth of coal, iron and other minerals.
- The oven holds sufficient heat to fire up a fresh charge of coal.
- We need to replenish our stocks of coal.
a cob of coal的相关资料：
a pack a aortic discrete subvalvular stenosis a symmetric double well -potential a question of fundamental importance a weak currency/economy/market A shrimp crossing a river/modesty A missile's inertial guidance system A Japanese conglomerate or cartel. a poignant image/moment/memory a voluntary agreement/arrangement