名词
中文翻译：未下降的
同义词：
['unborn', 'undelivered', 'unborn child例句：1. The baby was born at 38 weeks and is undescended.（这个婴儿在38周时出生，但尚未降生。）']
例句：
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1. The baby was born at 38 weeks and is undescended.
这个婴儿在38周时出生，但尚未降生。
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2. The doctors were unable to deliver the baby due to undescended cords.
由于脐带未脱落，医生们无法将婴儿接生。
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3. The mother experienced severe pain during labor but the baby was undescended until the end of the second stage.
母亲在分娩过程中经历了剧烈疼痛，直到第二产程结束，宝宝才降生。