sheep erythrocyte receptor

例句：

1. 1. Sheep are her favorite animals to watch.
   她最喜欢看羊。
2. 2. The farmer needs a lot of sheep for his farm.
   这位农民需要很多羊来他的农场。
3. 3. Sheep are often used for wool production.
   羊经常用于羊毛生产。