C2
[计] 操作系统安全性级别c2
🗣️ 情景例句
He always performs his tasks perfectly.
他总是圆满地完成工作。
The restaurant is across the street from the hotel.
餐馆越过宾馆的街区。
this little 'o' indicated that the train only stopped for mail.
这个标记表示列车是为装邮件而停车。