On other, on other grounds You, a professional economist, do not bring your expertise to bear on this man in evaluating him?

那是站在其他的角度,你可是一名专业的经济学家呢，难道你不,利用自己专业的评价来给他加点分吗？

斯坦福公开课 - 经济学课程节选

My dad was kind of, not a professional photographer, but he loved photography.

我爸爸，他不是个职业摄影师，但是他热爱摄影。

喜欢的照片 - SpeakingMax英语口语达人

First of all, I found secretary Rumsfeld a very easy person to deal with in a sense that he's very professional, very strict, very honest, not the kind of guy who, you know, take a different position, try to around behind your back. If he's going to stab you, he's going to stab you in the chest.

首先，我发现拉姆斯菲尔德秘书长,是很容易打交道的人,我指的是他非常专业，非常严格，非常诚恳，不像那类人，因为观点立场不同,就从你背后放冷箭,如果他想杀了你，也是从正面进攻。

普林斯顿公开课 - 国际座谈会课程节选