This means that instead of repeatedly requesting that Reader's Shared items reload from the server, the feed automatically updates via a distributed hub model.

Feed文件再也不用向Reader服务器反复发出加载分享文章的请求了，而是通过分布式主站模式自动更新。

youdao

Haggis and Rennard shared a house in Santa Monica, which soon became a hub for progressive political fund-raisers.

NEWYORKER: The Apostate