Semidefinite matrix
[计] 半定矩阵
🧩 词语组成解析
[计] 半定的
🗣️ 情景例句
As a matter of fact,
事实上，
Pride goeth before, and shame cometh after.
骄傲一开始，耻辱接踵至。
I had left it on a chair beside the door and now it wasn't there!
我曾把它放在门边的椅子上，可这会儿不见了！