在新概念3的第九课课文中,有一句话“yet only eight of them died from shock or injuries”

题目

在新概念3的第九课课文中,有一句话“yet only eight of them died from shock or injuries”
这句的injuries已经是复数了,为什么同样是名词并且是可数名词的shock不变复数呢?

答案

shock不可数
injury可数