built-in
US /ˌbɪltˈɪn/
UK /ˌbɪltˈɪn/

1.
内置的, 固有的
included as part of something and not separate from it
:
•
The new car has a built-in navigation system.
新车配有内置导航系统。
•
The apartment comes with built-in wardrobes.
公寓配有内置衣柜。
2.
固有的, 内在的
existing as a natural or essential part of something
:
•
There's a built-in risk in any investment.
任何投资都有内在风险。
•
The system has built-in safeguards against errors.
该系统具有内置的错误防护措施。