Semidefinite
[计] 半定的
🗣️ 情景例句
I need to meet with my marketing department,
我需要跟我的行销部门商量一下
I like playing football.
我喜欢踢足球。
which I found most helpful on the cross-country journey, but which I did not think I should need on the last stage.
在乡间行车途中，我觉得它非常有用，但快到家了，我倒觉得它没什么用了。