Prophylactic use of antivirals is an option for a handful of countries able to afford drug stockpiles, though not a very practical one.是什么意思_Prophylactic use of antivirals is an option for a handful of countries able to afford drug stockpiles, though not a very practical one.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句