首先，我们将进入 Power Virtual Agents，在左侧导航菜单中选择实体。在 "实体 "页面（如图 10-1 所示）上，您将看到一个有用的预定义实体列表：年龄、城市、州、街道地址、电子邮件等。例如，如果机器人问 "你住在哪个州？"这样的问题，而你的回答是 "我住在宾夕法尼亚州"，机器人就会知道 PA 是宾夕法尼亚州的缩写，并会去掉填充词，提取 PA 作为字符串。
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