“well, if it is, ” I say, crunching my carrot, “then I guess I’m immature, too, because I can’t fall asleep unless the tiny scrap of my old baby blanket is under my pillow.”

“嗯，如果这算幼稚，”我翻着卡通书，随口说，“那我想我也是幼稚的，因为，要是我小时候那条柔软的旧婴儿毯不在我的枕头下，我就睡不着觉。”

It is immature, like a baby would love his mother.

它是不成熟的，就好比婴儿爱他的母亲。

That's typically how an obstetric fistula arises: a teenage girl, often malnourished and with an immature pelvis, tries to deliver her first baby.

这是罹患产科瘘的典型方式：十几岁的女孩子，通常营养不足，骨盆发育尚未成熟，试着生下她的第一个孩子。