C2
[计] 操作系统安全性级别c2
🗣️ 情景例句
I went into business for myself
我当初自己开业
There was a big choice of shops in the small town.
这个小镇上有好多商店可供选择。
But that's impossible.Carol and Tom invited us to lunch.Look through the window.
但这是不可能的。卡罗尔和汤姆请我们来吃午饭。从窗子往里看看。