1N-SING (物体表面形成的)薄层 A patina is a thin layer of something that has formed on the surface of something. (物体表面形成的)薄层
The trophy is very impressive and rather special because it has a beautiful green patina.
这个奖杯给人印象非常深刻,相当特别,因为它表面有一层漂亮的绿锈。
He allowed a fine patina of old coffee to develop around the inside of the mug. [+ of]
他任由大杯内壁积聚上一层薄薄的咖啡垢。
2N-SING (旧东西年深日久产生的)包浆,光泽 The patina on an old object is an attractive soft shine that has developed on its surface, usually because it has been used a lot. (旧东西年深日久产生的)包浆,光泽
...a mahogany door that is golden brown with the patina of age. [+ of]
红木门因为年深日久形成的金棕色包浆
3N-SING (有点儿…的)样子 If you say that someone has a patina of a quality or characteristic, you mean that they have a small but impressive amount of this quality or characteristic. (有点儿…的)样子
...a superficial patina of knowledge. [+ of]
表面上有点儿知识的样子
Except for a patina of charisma, he was like a thousand other bright young men in Toronto.