perpetuity

🇬🇧/ˌpɜːpəˈtjuːəti/ 🇺🇸/ˌpɜːrpəˈtuːəti/ 31
If something is done in perpetuity, it is intended to last for ever. 永久

noun [抽象名词]永恒

They do not own the land in perpetuity.
他们并不永久拥有这片土地。

单词造句: