群聚的

例句：

1. 1.The birds are clustering in the treetops.
   鸟儿们正在树顶上聚集。
2. 2.The students are clustered around the table.
   学生们围坐在桌子周围。
3. 3. The flowers are clustering in a vase.
   花朵簇拥在花瓶中。