#脑然后就忘了上来本来是想说什么
啊,看paper提到乳糖不耐是因为自然来说人断奶之后就不需要奶了所以成年人就会乳糖不耐,好有道理。。。
CleverLibre Social is an inclusive social instance for open discussion, learning, and community. All cultures welcome. Hate speech and harassment strictly forbidden.