1.be good for意為 “對……有好處”.
Eating more vegetables is good for your health.
多吃蔬菜對你的健康有好處.
2.be good with意為“靈巧的；與……相處得好”.
=get on well with
He is very good with the children.
他與這些孩子處得很好.
3.be good /kind /nice to意為“對……好”.反義詞 be harmful to,do harm to
My friend was good to me when I was ill.
我生病時我的朋友對我關(guān)懷備至.
Smoking is harmful to health.
吸煙有害健康.