Biorthogonal
双正交的
🗣️ 情景例句
Well, how's everything here?
唔，东西都收拾好了吗？
He is speaking on another phone.
他正在接听别的电话。
Since its discovery, it has become a sort of potholers' Everest.
自从被发现以后，这个洞成了洞穴探险者的珠穆朗玛峰，