n.

1. 聚集，集成[U]
   The aggregation of immense farms under white ownership was a trend at that time.

   大規模的農場聚集在白人的所有權之下，這在當時是一股潮流。

2. 聚集體，集成體[C]
   The savanna was covered by the aggregation of herds.

   這個大草原遍地是牧群。