inbuilt
adjective mainly UK uk/ˈɪn.bɪlt/ us/ˈɪn.bɪlt/ (US usually built-in)
内在的，固有的
If something is inbuilt, it is an original part of something or someone and cannot be separated from it, him, or her.
an inbuilt advantage/problem 内在的优势／固有的问题
Synonyms: inherentintegral