intellectual retardation的用法和樣例：
例句
- Yet this important driving force may be absent, low, or problematic in persons with mental retardation.
然而，這個重要的動力，可能會缺席，低，或有問題的智力遲鈍者。 - Iodine deficiency in infants can result in mental retardation, stunted growth, and diminished intelligence.
嬰幼兒碘缺乏會導致智力遲鈍，發育遲緩和智力下降。
