Tcsec
可信计算机系统评价准则
🗣️ 情景例句
but they need me at the hospital today,
但今天医院有事，
Nothing so bad but might be a blessing.
塞翁失马，焉知非福。
Inevitably you arrive at your destination almost exhausted.
一旦抵达目的地，你总是疲惫不堪。