be good to 是对......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. My friend was good to me when i meet troubles. 我的朋友对我非常友好当我遇到困难时。 be good with 是灵巧的;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。