“预付的”用英语怎么说？

请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。Return the enclosed Donation Form today in the prepaid envelope provided.我也收取350澳元来提供预付的一系列6次咨询.It also offer a series of 6 prepaid consultations for $ 350 AU.而且这是根据你付的费用来预付的.And it's up...