Members have to pay an annual subscription.会员们每年必须交会费。Most members pay their annual subscription by direct debit.绝大部分会员以直接借记的方式缴付年费。Thank you for your letter regarding the annual subscription to our magazine.您的关于年度订阅我社杂志的信已收到,谢谢。It is available through an annual subscription service.通过年度订阅服务可以买到。