首頁›Browse›A›as a backupas a backup編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看as a backupas a backup — 名詞名詞1. something kept in reserve to replace another if needed1.名詞釋義備用something kept in reserve to replace another if needed例句Keep this file as a backup in case your computer crashes.