学个词 Learn a Word-VOA英语教学 2065 deficiency(在线收听) |
今天我们要学的词是 deficiency. Deficiency 名词,意思是欠缺,缺陷。一项最新研究发现,People who suffer from a Vitamin D deficiency are at a higher risk for developing high blood pressure. 患维生素D缺乏症的人更容易得高血压。Each year, Vitamin A deficiencies cause 300,000 children worldwide to go blind. 维他命A缺乏症每年都会在全球造成30万个孩子失明。好的,今天我们学习的词是 deficiency, deficiency, deficiency... |
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