albumen sac

例句：

1. 1. The baby's albumen sac is growing quickly.
   宝宝的卵黄囊正在快速生长。
2. 2. The doctor removed the albumen sac to remove the tumor.
   医生移除了卵黄囊以去除肿瘤。
3. 3.The albumen sac contains all the nutrients needed for the fetus to grow.
   卵黄囊包含了胎儿成长所需的所有营养物质。