Vicennial
a. (每)二十年的, 每二十年一次的
🗣️ 情景例句
Is everything all right?
一切都好吗？
Hasty climbers have sudden falls.
大起者有大落。
The question became one of whether Man could control the disease he had invented.
现在的问题是，人类能否控制住这种人为的疾病。