Modern efforts to produce artificial blood were spurred on by the military in World Wars I and II and, more recently, by the discovery in the early 1980s that HIV could be transmitted by blood transfusion.是什么意思_Modern efforts to produce artificial blood were spurred on by the military in World Wars I and II and, more recently, by the discovery in the early 1980s that HIV could be transmitted by blood transfusion.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句