事件标识符与事件源一起唯一标识事件。

Event identifiers, together with the event source, uniquely identify an event.

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类似于清单9，清单10也通过GET方法取得事件标识符。

Like Listing 9, Listing 10 also receives the event identifier over the GET method.

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参数指定评论的日期、故事标识符、事件标识符以及输入该评论的用户。

The parameters specify the date of the comment, the story identifier, the identifier of the event, and the user who entered the comment.

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