Semidefinite operator
[计] 半定算子
🧩 词语组成解析
[计] 半定的
🗣️ 情景例句
How many languages do you speak?
你会讲几种语言？
How much is a one-way ticket to Beijing?
一张到北京的单程票要多少钱？
She has been collecting stamps.
她一直收集邮票。