We have been brought up to fear insects.这句话里面的to fear insects说是做we的补足句,to 是什么用法为什么用to

We have been brought up to fear insects.这句话里面的to fear insects说是做we的补足句,to 是什么用法为什么用to
We have been brought up to fear insects.这句话里面的to fear insects说是做we的补足句,to 是什么用法
为什么用to

We have been brought up to fear insects.这句话里面的to fear insects说是做we的补足句,to 是什么用法为什么用to
to 是bring up 转换为被动语句后,在与后面动词连接中加的介词