所以，尽管Tonido的应用界面美观(截图)且不收取费用，但用户却得牺牲掉方便，换来数据的那么一点点安全。
So, although the apps look good and cost nothing, users have to trade a lot of convenience for a modicum of data security.
尽管Facebook将来定会有所变化，但当前，Facebook不会向使用这种身份管理基础平台或访问那些额外信息的网站收取费用。
Currently, Facebook doesn't charge websites to use its identity infrastructure or access this additional information, though Facebook certainly could in the future.
如果顾客想获得最舒适的体验，可以自带常规的床单，但需要额外收取费用。
If a client wants to sleep in maximum comfort, he can take the normal set of bed linen for an extra fee.
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