Neanderthals had a vocal tract resembling an ape's and so were probably without language, a shortcoming that may explain why they were supplanted by our own species.
此句中a shortcoming that,,,,, 在句中冲当何种成分,或者是特殊结构?
谢谢指点.
XXXXX 的解答
"修饰前面一个分句的,也就是 were probably without language,属于概扩性同位语从句"
Neanderthals had a vocal tract resembling an ape's (a vocal tract ) and so were probably without language, a shortcoming that may explain why they were supplanted by our own species. 说N有种a vocal tract 和猿人的a vocal tract 一样的,所以没有语言,(没有语言导致的) a shortcoming(再解释为什么他们会被我们的种族取代