Biunique
a. [数]一( 对) 一的, [语]单向双系列对应的
🗣️ 情景例句
What can I do for you, sir?
先生，有什么需要帮忙的吗？
I've heard so much about you!
久仰大名！
To his surprise, she said she hadn't.
使他吃惊的是，她说她不喜欢。