Semidefinite operator
[计] 半定算子
🧩 词语组成解析
[计] 半定的
🗣️ 情景例句
The weather during our holiday was perfect.
我们度假时天气好极了。
Rain before seven; fine before eleven.
雨过天晴。
There's nothing much I can do.
这事情我无能为力。