ceremony和其他词的差别
ceremony释义：
n. 典礼，仪式；礼节，礼仪；客套，虚礼
例句：
He was invited to speak as an outstanding student at the opening ceremony.
他被邀请作为优秀学生进行开幕仪式的发言。
词组：
opening ceremony开学典礼；开幕式；开幕仪式；开幕典礼
wedding ceremonyn. 结婚典礼
signing ceremony签字仪式；签约仪式
closing ceremony闭幕典礼
graduation ceremonyn. 毕业典礼