观礼的英文：
attend a ceremony

attend是什么意思：
v. 出席，参加；上（大学等）；照料；致力于；伴随

Attendance is obligatory.
出席是必须的。

in attendance on a person
随侍 [服侍] 某人

Everybody consciously attends to things and everything is attended to
人人自觉管,事事有人管。

May good fortune attend you!
祝你鸿运当头！

Few students attended the meeting.
没几个学生出席会议。

ceremony是什么意思：
n. 典礼；仪式；礼节；客套

MC (master of ceremonies)
司仪|节目主持人

To assemble for a ceremonial military review.
阅兵，检阅为阅兵仪式而集合

This fete of the casting will be a grand ceremony.
这个铸炮节应该好好地庆祝一下。

They will assist a graduation ceremony.
他们将参加毕业典礼。

We have taped the wedding ceremony.
我们已经给婚礼录了像。