The meeting hall was packed.

会场里挤满了人。

youdao

The meeting hall was seething at once.

会场上顿时沸腾起来了。

《新英汉大辞典》

Students should meet guests in the meeting hall on the first floor of the apartment. Guests are not allowed to enter students' apartment.

留学生可在国际学生公寓一楼大厅会见来客，不得擅自将来客带入宿舍房间内。

youdao

Western nations walked out of the meeting hall in protest, and Mr.Obama condemned the remarks.

VOA: standard.2009.04.26

From Raleigh,Mr.Obama traveled to the town of Bristol,Virginia for another town-hall meeting on health care reform this time with employees at a local supermarket.

VOA: standard.2009.07.29

Many of the civil servants gathered in groups outside the meeting hall to coordinate assignments to return to their jobs.

CNN: Baghdad civil servants mull resuming work

For the action step at the end, the speaker asked everyone in the audience to reach into their pockets and purses, grab all the loose change they could, and, on the count of 3, throw it on the floor of the meeting hall.

FORBES: What's the Best Way to End a Presentation?

Had the gamers stumbled into the wrong meeting hall?

FORBES: Supercomputing and High Performance See Growing GPU Adoption