user of oil的用法和样例：
- The company is the biggest user of oil.
- America is a big user of oil, compared with fuel-efficient Europe, so more dollars than euros flow into the oil-exporters’ coffers when oil becomes dear.
- Industry is a heavy user of electric power.
- The price of oil has suddenly rocketed up.
- The country has abundant supplies of oil.
- The price of oil have reach$30 a barrel.