单词mental impairment
网络: 精神损伤；心智损伤；精神创伤
It had a sense of "mental impairment" that evolved not only into these two meanings of dumb, but into the word deaf as well.
它有“智力损伤”的意思，不仅衍生到dumb的这两层意思，还衍生到了deaf这个词。
Another big government-funded study found that vitamin D deficiency can raise the risk of mental impairment up to fourfold.
另一个政府资助的大型研究发现，维生素D缺乏可以使这种大脑损坏的风险增加四倍。
A country with a population that cannot be educated because of mental impairment is a country that will never reach its full potential.
因精神障碍而导致一群人不能接受教育的国家，将是一个永远不能发挥其全部潜力的国家。
A disadvantage or deficiency, especially a physical or mental impairment that prevents or restricts normal achievement.
限制，不利条件不利的条件或不健全，尤指由于身体或智力受损而阻碍或限制正常发展。
Its consequences are nevertheless disastrous: hidden hunger can lead to mental impairment, poor health and productivity, or even death.
然而其后果是相当糟糕的：它会损害精神，健康以及生育能力，甚至导致死亡。