1、My niece was born as a preemie, so she had to stay in the hospital for a few weeks before going home.
我侄女是一个早产儿，所以她在出院前要在医院呆几个星期。
2、The doctors closely monitored the preemie's development to ensure that she was growing and developing properly.
医生们密切监测早产儿的发育情况，以确保她的成长和发育正常。