Be feed up with

If your website is content-heavy and is updated frequently (e.g. a blog or news site), having an RSS feed will be a necessary site feature for keeping your users up-to-date with fresh content.

——如果你的网页内容很多，而且更新非常快（比如：博客或者新闻网站），提供RSS订阅将保证你的读者能第一时间收到你更新的消息和内容。

Unfortunately, whereas cities of up to a million population may be able to work with their rural surroundings to feed their people without dependence on oil, cities of ten and twenty million cannot.

令人遗憾的是，有着数百万人口的城市能够就他们农村周边的工作来养活自己的人们，而不依靠石油，但有着十亿、二十亿人口的城市却不能。