have an ear/an eye/a nose for
be able to judge correctly；be able to detect，or appreciate sth．（because one's senses are alert or well trained）有眼光；很能鉴赏；对…感兴趣
She has an ear for music．她对音乐很有欣赏能力。
A good reporter has a nose for news．好的记者对新闻很敏感。
She has an eye for color and style in clothes．她对服装的颜色和式样很有鉴赏力。
have an/the edge on sb．be in a position of advantage（compared with sb．else）（与某人相比）占优势；胜过某人
In typing，he has an edge on everyone else in our class．论打字，他比我们班任何人都强。
We can't beat them at tennis，but we have an edge on them in pingpong．打网球我们赢不了他们，可是论乒乓球，我们比他们强。