intermediate branch of atrium

例句：

1. 1.The atrium of the building is a central meeting place for staff.
   这座建筑的中央大厅是员工开会的中心地点。
2. 2. The heart of the city is its central atrium, bustling with activity.
   城市的心脏是其中央大堂，繁忙而充满活力。
3. 3.The center of the universe is the Big Bang, and the atrium of the universe is the cosmos.
   宇宙的中心是大爆炸，宇宙的中心是宇宙本身。