Linux 2.6内核和GNU软件构成了操作系统，图形界面则称为Sugar。

The Linux 2.6 kernel and GNU software make up the operating system, but the graphical interface is called Sugar.

youdao

每种平台都有自己一些独特的API，当然，Android是一个完整的操作系统，包括一个Linux - based的内核，图形系统和电信堆栈，等等。

Each platform has some unique APIs, and of course, Android is a complete operating system including a Linux-based kernel, graphics and telephony stacks, etc.

youdao