ceremonial是什么意思

　　例句：

　　1、He represented the nation on ceremonial occasions

　　他在正式場合代表國家。

　　2、He is arrayed in ceremonial robes.

　　他穿著禮服。

　　3、The visit was conducted with all due ceremonial.

　　訪問按照一切應有的禮儀進行。