Semidefinite matrix
[计] 半定矩阵
🧩 词语组成解析
[计] 半定的
🗣️ 情景例句
Which newspaper do you read?
你看哪种报纸？
We'd better not go out tomorrow, son.
孩子，我们明天最好不要出去。
Spring is a pretty season，
春天是一个好季节。