In a small village, there was a middle-aged postman, who just turned 20 years old and started delivering all kinds of happy or sad stories to each home day after day for 50 kilometers.

在一个小村庄里，有一位中年邮递员，他刚满20岁就开始在50公里的路程中日复一日地向每家每户传递各种或喜或悲的故事。

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Next morning, I feel hurt and sad but it only lasts for a day or so.

第二天早上，我感觉受到伤害，很伤心，但这种心情只是持续了一两天。

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Next morning, I feel hurt and sad but it only lasts for a day or so.

第二天早上，我感觉受到伤害，很伤心，但这种心情只是持续了一两天。 洈。

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"But today is not a day for vindication or celebration, but sad reflection, " he said.

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Some apps that Havens models his ideas on are Emotionsense, an app for Android that uses the microphone to sample the ambient sounds and conversations of the day and assembles a dossier on how happy or sad you are, and Moodscope, a website that lets users share and understand their moods and get support from friends.

FORBES: Are You Happy? An App Tries To Raise Our Collective Mood