n. 石油; 原油; 燃油; 润滑油; 食用油
v. 给…加润滑油
复数:oils过去式:oiled现在分词:oiling过去分词:oiled第三人称单数:oils
Oxford 3000 / Collins.5 / BNC.906 / COCA.546
noun
verb
n.
burn the midnight oil
pour oil on troubled water(s)
v.
oil the wheels
noun
Synonym: oil coloroil colour
Synonym: vegetable oil
verb