Underdeterminant
子行列式
🗣️ 情景例句
I understand your feelings about it, Richard.
我了解你对这种事的心情， Richard。
Compared to the previous model, our new model is less expensive and easier to use.
与旧型机比较我们的新型价格便宜且更容易操作。
How long has Jim been at his school?
吉姆到校有多长时间了？