Tcsec
可信计算机系统评价准则
🗣️ 情景例句
We'll do that immediately.
我们可以立即跟她谈。
We have a wide selection of sweaters that will appeal to all ages, and in particular the teenager market which you specified.
我们有各种各样适合各个年龄层次的羊毛衫，特别是您专门提到的青少年市场。
He had been the first to turn a telescope to the sky,
他是第一个把望远镜对准天空的人，