毕竟，FreeBSD是一个多用户多任务的操作系统。

After all, it is a multi-user, multi-tasking system.

youdao

一个多任务的操作系统中的每个进程运行在它自己的内存沙箱。

Each process in a multi-tasking OS runs in its own memory sandbox.

youdao

事实上，黑莓一开始就是以多任务为设计取向，我认为我们的操作系统一直被低估了。

The fact is that the BlackBerry was designed to multitask from day one. I think our operating system has constantly been underestimated.

youdao