tercentenary
noun /ˌtɜːsenˈtiːnəri/
/ˌtɜːrsenˈtenəri/
(plural tercentenaries)
- the 300th anniversary of something
三百周年纪念 - the tercentenary of the school’s foundation
建校三百周年纪念 - tercentenary celebrations
三百周年庆典
- the tercentenary of the school’s foundation