sheep
[Fi:p]
n.羊, 绵羊, 羞答答的人, 胆小鬼, 信徒 (来源：最老牌的英语学习网站 http://www.EnglishCN.com)

 a flock of sheep 一群羊
 a wolf in sheep's clothing
披着羊皮的狼, 口蜜腹剑的人

 a black sheep
害群之马; 拒绝参加罢工的工人

 a lost sheep
迷途羔羊, 迷失正道的人

 a sheep among wolves
落入狼群; 落在一群恶汉手中的善良人

 as a sheep among the shearers
仿佛落在剪羊毛工人手里的绵羊

 as well be hanged for a sheep as for a lamb
[谚]偷大羊或偷小羊反正都得挨绞刑; 一不做二不休

 count sheep
数羊(心里计数以求入睡)

 follow like a sheep 盲从

 One scabbed sheep infects the whole flock.
[谚] 一只羊生疮整群羊遭殃。

 return to one's sheep [muttons]
回到本题

 separate the sheep from the goats
区别好人和坏人

 There is a black sheep in every flock.
[谚]到处都有害群之马。

 sheep and goats
善人与恶人(来自《圣经》)

 sheep that have no shepherd
乌合之众

 ' Without a shepherd, sheep are not a flock.'
- Russian Proverb

 'An army of sheep led by a lion would defeat an army of lions led by a sheep.'
- Arab Proverb

 'The sheep has no choice when in the jaws of the wolf.'
- Chinese proverb