高手给分析下这个句子的成份与语法结构

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高手给分析下这个句子的成份与语法结构
Anthropologists have discovered that fear,happiness,sadness,and surprise are universally reflected in facial expressions

这个句子并不复杂,Anthropologists have discovered.是主句,连词that后面引导一个宾语从句fear,happiness,sadness,and surprise are universally reflected in facial expressions .从句是被动语态,有四个并列的单词...