under-weight的用法和樣例：
例句
- This article described the nursing experience for a low birth weight premature infant with narcotizing enterocolitis.
摘要本文旨在呈現一位罹患壞死性腸炎低體重早產兒面臨生理功能不穩定的護理經驗。 - Other leading causes of death are lung disease, cancers of the windpipe and lungs, road accidents and low birth weight.
造成死亡的其他主要原因是肺病，氣管肺癌，車禍和出生低體重。
