So far, the AIDS epidemic has left behind 13.2 million orphans - children 15 years old or younger who have lost one or both parents to the disease.是什么意思_So far, the AIDS epidemic has left behind 13.2 million orphans - children 15 years old or younger who have lost one or both parents to the disease.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句