名词
中文翻译：脐带的血管部分
同义词：
['umbilical vessels', 'umbilical cord', 'umbilical veins', 'umbilical arteries']
例句：
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1. Thebaby's umbilical cord was wrapped tightly around his neck.
婴儿的脐带紧紧地绕在他的脖子上。
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2.During labor, the umbilical cord is stretched and can cause pain.
分娩时，脐带被拉伸，可能会导致疼痛。
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3.Doctors often remove the umbilical cord to prevent infection during birth.
医生经常剪断脐带，以防止出生时感染。