sheep的复数形式是：sheep。sheep是单复数同形，意思是：羊，绵羊；胆小鬼。读音是：英/ʃiːp/、美/ʃiːp/。
短语：
1.black sheep 败家子；害群之马
2.lost sheep 迷途羔羊（误入歧途的人）
3.sheep and goats 善人与恶人
例句：
1.Sheep were grazing in the fields.羊在野地里吃草。
2.They kept a small flock of sheep.他们养了一小群绵羊。
3.The field had been grazed by sheep.这块地羊已经啃过了。