您要查找的是不是：
- An organic derivative, such as coal or petroleum. 有机衍生物一种有机衍生物，如煤或石油
- Indonesia is abundant in petroleum deposits. 印尼的石油蕴藏量丰富。
- A source of usable power,such as petroleum or coal. 能源可用能量的来源，如石油或煤
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- A trademark used for a brand of petroleum jelly. 凡士林用来作为石油脂的商标
- Taiwan seems to contain no petroleum. 台湾恐怕没有蕴藏石油吧！
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- This land is rich with petroleum. 这片土地盛产石油。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- The chemistry of petroleum and its derivatives. 石油化学石油及其复合物的化学
- Petroleum can be used to produce various chemical products. 石油可用于生产多种化学产品。
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- We have enough coal to see the winter out. 我们有足够的煤过冬。
- They eked out their coal by collecting firewood. 他们拣拾木柴以补充煤的不足。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- Pile on more coal the fire is going out. 火快灭了，再加上些煤。
