children can be instructed in swimming at a very early age.

问题描述:

children can be instructed in swimming at a very early age.
children can be instructed in swimming at a very early age 这句话 can be instructed in 请问这个"be instructed in " 是固定搭配?
如果是固定搭配 是被动语态吗?

be interested in 是固定搭配
意思是对.感兴趣