biochemistry of lactation

例句：

1. 1.Lactation is the process of producingmilk for feeding infants.
   哺乳期是产生乳汁喂养婴儿的过程。
2. 2. The mother'slactation period can last up tosix months after childbirth.
   母亲的哺乳期可以持续到产后六个月。
3. 3. Lactation isa crucial part of human life and health.
   哺乳期是人类生活和健康的重要组成部分。