please give me some advice on how to keep healthy.为什么用on?

问题描述:

please give me some advice on how to keep healthy.为什么用on?

on 表示在某一领域的专业知识。
Book on A(H1H1)Precautions,翻译为甲型HINI流感预防手册

貌似这里的ON就象是ABOUT..
是"象",不是"是"...

give sb advice on sth 固定搭配