Density matrix
[化] 密度矩阵
🧩 词语组成解析
🗣️ 情景例句
I called my parents from the airport.
我从机场打电话给我父母。
The message may even be an original saying written by a member of the family.
格言也可能是家庭某位成员写下来的新颖奇特的有独创性的见解。
when she remembered that she had gone shopping after the home help had left and she knew that she had turned both keys in their locks,
但突然记起来了，帮手是在她出去买东西之前走的，她还记得曾用了两把钥匙把大门锁上了。