built-in
adjective [ before noun ] uk/ˌbɪltˈɪn/ us/ˌbɪltˈɪn/
内嵌的；嵌入式的
If a place or piece of equipment has built-in objects, they are permanently connected and cannot be easily removed.
built-in storage 嵌入式储物间
UK All the rooms have built-in cupboards/wardrobes. 所有的房间都安装了嵌入式壁橱／衣橱。
(UK also inbuilt)内在的；固有的
A built-in quality is an original part of something or someone and cannot be separated from it, him, or her.
an built-in advantage/problem 内在的优势／固有的问题