As an easy way to decide whether it is RSS or Atom, look at the root node name: RSS if RSS or feed if Atom.

判断它是rss还是Atom的一种最为简便的做法是看它的根节点名称：如果是rss，则为rss，如果是Atom，则为feed。

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The response to this request is an Atom or JSON feed containing a list of matching users, together with their name and Google ID.

该请求的响应是一个Atom或JSON提要，其中包含一系列匹配的用户，以及他们的姓名和Google ID。

youdao

In Atom format, the content is preceded by the Twitter name, then a colon (:).

在atom格式，内容之前是twitter名，然后是一个冒号(：)。

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As the name implies, the atom transfer step is the key step in the reaction responsible for uniform polymer chain growth.

FORBES: Better Science Makes Better Products

These are an amine group, an acid group (hence the name), a hydrogen atom, and a fourth chemical group that can be any one of 20 different clusters of atoms.

ECONOMIST: Folding stuff