Biuniqueness
双向单一性
🗣️ 情景例句
Hi. How was lunch?
嗨 。午餐怎么样？
It is convenient to know the language.
掌握这门语言会带来方便。
Insuring public or private property is a standard practice in most countries in the world.
承办公共财产或私人财产保险是世界上大部分国家的正常业务。