Tcsec
可信计算机系统评价准则
🗣️ 情景例句
My instructor thought that the beginner's class was too easy for me.
老师认为初级课程对我来说太容易了。
I don't see any point in discussing the question any further.
我不能进一步领会这个问题的任何观点。
What work are you going to do?
我们打算干什么活？