C2
[计] 操作系统安全性级别c2
🗣️ 情景例句
As far as possible, the teacher should expose the student to real life situations.
教师应该尽可能使学生接触现实生活的情景。
All produets have to go through five checks in the whole process.
所有产品在整个生产过程中得通过五道质量检查关。
Yes, I remember.
我想起来了。