绵羊的统称的英文：
flock
n. 畜群；人群，群众；同一教会团体的教徒；毛束，棉束，棉丛
v. 群集，成群结队而行
They are the flock of Buddhist.
他们是佛教徒。
The infected breeder flocks are quarantined from uninfected flocks
把感染群同非感染群隔离开来。
Birds of a feather flock together.
同类之鸟聚集在一起(物以类聚)。
It is a small flock that has not a Black sheep
家家难免有败类
There is a black sheep in every flock.
在每一群羊中总有一只黑羊（害群之马）。