C2
[计] 操作系统安全性级别c2
🗣️ 情景例句
I did not notice it until yesterday.
我一直到昨天才注意到它。
The little car has lots of room.
这小汽车有许多空间。
Let me see. Did you wash it in hot water?
让我看看。您是用热水洗的吗？