Tcsec
可信计算机系统评价准则
🗣️ 情景例句
Are we ready to go?
我们可以开始了吗？
He has been working in advertising for ten years, but now he is teaching.
他曾经在广告公司服务十年，但现在在当老师。
I don't mind. Either time is OK.
我不介意什么时候。都行。