Preious work has shown that mice with their prion gene knocked out remain healthy, and when inoculated with scrapie are protected against the disease1.是什么意思_Preious work has shown that mice with their prion gene knocked out remain healthy, and when inoculated with scrapie are protected against the disease1.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句