You should code an E-mail before sending it, which will increase it by 5% to 20%.

发邮件前还要进行编码，会导致邮件的大小增加5% - 20%。

youdao

You should code an E-mail before sending it, which will increase it by 5% to 20%.

发邮件前还要进行编码，会导致邮件的大小增加5% - 20%。

youdao