Biunique
a. [数]一( 对) 一的, [语]单向双系列对应的
🗣️ 情景例句
If you have any trouble, let me know.
如果你有任何的麻烦，请告诉我。
I think a joint venture would be beneficial to us both.
我认为合资经营对双方都是有利的。
How long has Kate been at her school?
凯特进校学习有多长时间了？