This certifies that he has been under our care for this problem.
问题描述：
This certifies that he has been under our care for this problem.
1.那位高手能帮我分析句子结构,
2.under解作什么?
答
This 主语certifies 谓语,下面是宾语从句that he 从句主语has been 系动词under our care 表语for this problem.状语under 是接收或接受的动作,receiving or undergoing the action or effect of比如：...