n.油;石油;油画;燃油;
vt.给…加油;
vi.化成油;
例句:
Oil and water do not intermix.
油和水不能混合.
He ploughed much money into developing new oil fields.
他将很多钱投资于新油田的开发.
The watch wants oil.
这手表需要擦油了.