C1 noun, adjective /ˈsɛntənəri/ or /sɛnˈtɛnəri/
centenary
百年纪念
Meaning
The hundredth anniversary of a significant event; relating to a period of 100 years.
Example
The school celebrated its centenary with a grand event.
学校以一场盛大的活动庆祝了它的百年纪念。