1、 Before the 1830s, most newspapers were sold through annual subscriptions in America, usually $8 to $10 a year.
在19世纪30年代以前，美国的大多数报纸都是通过年度订阅销售的，通常是一年8到10美元。
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2、 Only 6.1 percent of users have ever appealed to supervisory departments and about half of them do not know how to cancel unwanted SMS subscriptions.
仅有6.1%的手机用户曾向监管部门提出申诉，其中约一半人不知道如何取消不想要的短信订阅服务。
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