main assemblage of spring

例句：

1. 1. Themain assemblage of the conference was a panel discussion.
   会议的主要集合是一次小组讨论。
2. 2. The main assemblage of the museum is the collection of artefacts.
   博物馆的主体集合是艺术品收藏。
3. 3. The main assemblage of the meeting was a presentation on climate change.
   会议的主体集合是一场关于气候变化的演示。