首頁›Browse›E›extra copyextra copy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extra copyextra copy — 名詞名詞1. an additional duplicate of something, such as a document or file.1.名詞釋義額外副本an additional duplicate of something, such as a document or file.例句Please keep an extra copy of the contract in the safe.