形容詞 oily:

1. containing an unusual amount of grease or oil
   同義詞：greasy, sebaceous, oleaginous
2. unpleasantly and excessively suave or ingratiating in manner or speech
   同義詞：buttery, fulsome, oleaginous, smarmy, soapy, unctuous
3. coated or covered with oil
4. smeared or soiled with grease or oil
   同義詞：greasy

1. I use an oily rag to clean my bike with.
   我用沾滿油污的碎布擦我的自行車。
2. The sparks set fire to the oily rage.
   火花使浸透油的破布燃燒起來了。
3. He cleaned the car with an oily rag.
   他用一塊沾油的抹布擦干凈汽車。
4. I don't like oily shop assistants.
   我不喜歡過分殷勤的店員。
5. He wears an oily old pair of jeans.
   他穿著一條沾滿油污的舊牛仔褲。

oil.y

adj.（形容詞）
oil.i.er,oil.i.est
Of or relating to oil.
油的或與油有關的
Impregnated, smeared with, or containing oil; greasy.
充滿油的，涂了油的，含油的；油膩的
Excessively suave in action or behavior; unctuous.See Synonyms at unctuous
油滑的，諂媚的：行為上過于老于事故的；甜言蜜語的參見 unctuous

【引伸】
oil.ily
adv.（副詞）
oil.iness
n.（名詞）