Underdeterminant
子行列式
🗣️ 情景例句
No. I'm sorry, but we can't send out our tow truck to get you.
不能，真对不起，我们不能派拖车来。
Fire, water, and money are good servants, but bad masters.
水火金钱是忠仆，使用不当是祸首。
I'm not sure we can wait that long.
恐怕等不了那么久了。