A:善长于...的 eg. 1. He was very good in part. 这个角诗他扮逸得十分出色。 2. I know that you will make good in new job because you thrive on. 我相信你一定能胜任新职,因为你是踊个能当重任的人· B:good on 没有这样连用的 C:be good at 意为“擅长……”,后接名词、代词或ving形式。例如: I’m good at playing chess. 我擅长下象棋。 good 的其它用法: 1)be good with意为“灵巧的;与……相处得好”。 例如: She is good with her hands. 她手很巧。 He is very good with the children. 他与这些孩子处得很好。 2)be good to意为“对……友好”。 例如: My friend was good to me when I was ill. 我生病时我的朋友对我关怀备至。 3)be good for意为 “对……有好处”。例如: Eating more vegetables is good for your health. 多吃蔬菜对你的健康有好处。