他们望着夕阳没入远处的山谷。They watched the sun set behind the distant dales.在仅剩的几个水坑里，河马根本无法没入水中。Hippos are unable to submerge in the few remaining water holes.群山渐渐没入天际.Hills melt into the sky....
Methods: The IPE of rabbits were detached and cultivated according to the method of enzyme - assisted microdissection.方法: 采用酶辅助机械分离法分离并培养兔眼虹膜色素上皮细胞....