Both the backup file and SWF will be overwritten if they exist.Replacement can only be done if the new SWF filesize is smaller or equal to the old SWF filesize.是什么意思_Both the backup file and SWF will be overwritten if they exist.Replacement can only be done if the new SWF filesize is smaller or equal to the old SWF filesize.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句