It is important to us为什么用介词to

It is important to us为什么用介词to It is important for us to learn English well. 为什么用to learn是用 It is important for us to ______. It is important to us (learn)English It is quite important for us to keep healthy.为什么是for不是to? Time is so important to us 和It is so important for us to lea it is important —— us to learn English well 横线上 用for 还是to 为什么说Devotion is important to success,为什么用介词to 英语翻译It is very important for us to ( )( )( )( )our lives it is important for us to study english Health is very important to us.为什么用to而不用for呢?呵呵, it is important for us to study english well 为什么要加to 说明清楚简单点