Tcsec
可信计算机系统评价准则
🗣️ 情景例句
And it hung over Robbie's crib.
Robbie的小床也有过。
In college I majored in philosophy, What was your major?
大学时我主修哲学，你主修什么呢？
The material was not damaged by us.
东西不是我们损坏的。