He gave a performance in the auditorium.

他在礼堂里作了一次演出。

youdao

My guess is in the auditorium, that's where they usually are.

我猜是在大礼堂里，他们通常都在那里。

youdao

It is hereby announced that there will be a talk on the international situation in the auditorium at 3 on Saturday afternoon.

定于星期六下午3点在礼堂举行国际形势报告会，特此通知。

《新英汉大辞典》

But, unlike his students, he never appeared in the main auditorium at Carnegie Hall.

VOA: special.2011.07.11

So right now I'm looking at the chairs in the auditorium.

比如说,我现在正盯着观众席上的椅子

耶鲁公开课 - 死亡课程节选

More than 500 people packed an auditorium in Chicago to hear how NASA astronauts and flight controllers successfully brought the 1970 mission home after an explosion crippled the spacecraft.

VOA: standard.2010.04.15

The instrument, which has 7, 710 pipes, was installed in the auditorium in 1954 but was removed for renovation work.

BBC: Royal Festival Hall gets ?950K for organ refurbishment

On Thursday, Avital, 84, and Lewis, 90, met face-to-face for the first time in the auditorium at Wappingers Junior High School.

WSJ: Holocaust survivor, liberator meet for first time

He said in an interview that his favorite moment in school was cutting class to go play the piano in the auditorium.

WSJ: Billy Joel surprises New York high school