Semidefinite
[计] 半定的
🗣️ 情景例句
OK. I can't believe it!
好的。我简直无法相信！
Hunger knows no friend.
饥难周友。
Then we'd better pick the rest of these cabbages before the weather changes.
那么我们最好在天气变化之前就把其余的包心菜都收回来。