n (家畜的)栏(圈，棚) (fenced area for farmed animals) [C]：a sheep/cattle/poultry～羊圈/牛圈/鸡舍;The dog chased the sheep into the～. 那狗把羊群赶进圈里。

vt 使关在栏(圈，棚)中 (put or keep in a pen) [T+n]： The sheep/cattle have to be～ned every night. 羊/牛群得关在圈里过夜。

pen in/up (v adv) 将……关(圈)起来 (vt)： How long has he been～ned up in the house by his illness? 他因为疾病关在屋子里多久了?Work does not stop for the day until all the sheep are safely～ned in. 直到所有的羊都安全地关进圈里，一天的工作才算结束。