Trieteric
a. (古希腊节日)每三年(举行)一次的
🗣️ 情景例句
I'm happy to meet you.
很高兴见到你。
When do you get up everyday?
每天你几点起床？
or even the universe itself, must in the nature of things 'wear out'.
甚至宇宙本身，从事物的本质上来说都会磨损掉"。