Biorthogonality
[计] 双正交
🗣️ 情景例句
Well, maybe your dad and I could take you fishing with us.
嗯， 也许你爸爸和我可以带你去钓鱼。
What time is it?
几点钟了？
Make sure that all bottles are opened in your presence,
确保瓶子是当着你的面开启的，