bicentennial

名词 bicentennial:

1. the 200th anniversary (or the celebration of it)
   同义词：bicentenary

形容词 bicentennial:

1. of or relating to or completing a period of 200 years
   同义词：bicentenary

1. For various reasons, the House and Senate, in their bicentennial year, have gotten off to an even slower start than usual.
   由于种种原因，众参两院在这两百周年里，一开始[议程进度]就比往常迟缓。

bi.cen.ten.ni.al

adj.（形容词）
Happening once every 200 years.
每二百年发生一次的
Lasting for 200 years.
持续二百年的
Relating to a 200th anniversary.
二百年纪念的
n.（名词）
A 200th anniversary or its celebration.Also called bicentenary
二百周年纪念或庆祝也作 bicentenary