invitation for subscription

例句：

1. 1. The company sent out an invitation forsubscription to its new product launch.
   公司发出了一份关于新产品发布的订阅邀请。
2. 2. The magazinehas a subscription fee of $50per year.
   该杂志的年订阅费为50美元。
3. 3. The website offers afree trial subscription for new users.
   该网站为新用户提供免费试用订阅服务。