您要查找的是不是：
- CF集族CF - families
- 闭集族family of closed sets
- 集族family of sets
- 族nationality
- 凸集族family of convex sets
- 合集union
- 开集族family of open sets
- 分集diversity
- 食人族man-eater
- 歌集songbook
- 族的Goidelic; Lombardic
- 并集union of set
- 群集throng
- 芳香族aromatic series
- 产业集群industry cluster
- 闪族Shemite
- 杂集miscellany
- 字集character set
- 脂肪族fatty group
- 芳香族化合物aromatic compound
