句子分析But in cases with a known cause the experts say salmonella is responsible for more than 1/3 of hospitalizations. 英语
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【答案】 但专家说,在一些已知病因的病例中,有超过三分之一的住院治疗都是由沙门氏菌引起的.
这是主谓宾结构 主语 是 the experts 谓语是say 宾语是 省略that的宾语从句
宾语从句是系表结构 主语是salmonella 系动词是is 表语是responsible
in cases with a known cause 是状语 修饰宾语中的谓语is responsible
for more than 1/3 of hospitalizations 也是状语 也是修饰 is responsible