In the bird embryo these bristles erupt from tiny patches of skin cells called placodes. A ring of fast-growing cells on the top of the placode builds a cylindrical wall that becomes a bristle.
If that mocking bird won't sing, momma's gonna buy you a diamond ring.
要是小八哥不唱歌,妈妈要给你买一个戒指。
3
No ringbird glycosides oral, 5 times a day, each time 200mg, or use its ointment for external use, interferon injection of 3 million units per day, five days a week.