Density operator
[化] 密度算符
🧩 词语组成解析
🗣️ 情景例句
So would I.
我也是。
Please accept my apology.
请接受我的道歉。
The tree was planted near the church fifty years ago, but it is only in recent years that it has gained an evil reputation.
该树是50年前栽在教堂附近的，但只是近几年才得到了一个坏名声。