Quindecennial
十五年期间\\na. 每十五年发生一次的, 持续十五年的
🗣️ 情景例句
It was wet yesterday.
昨天下雨。
I'll have to see about that.
这事我得想一想再定。
The students followed Uncle Wang to see the other machine.
学生们跟着王大叔去看另一部机器。