在信息经济中，许多人有能力生产技术创新：一个新的MP3播放器。

In an information economy, many people have the ability to produce technical innovation: a new MP3 player.

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它还带有一个扩音器，播放预先录制的信息，提醒游客保持社交距离的重要性。

It also carries a loudspeaker to broadcast a pre-recorded message to remind visitors of the importance of social distancing.

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他告诉我有关一个播放非常柔和音乐的电台的信息。

He told me about a station that played very coony music.

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Let me make sure that the user annotations are disabled this time and let's take a little look at this one here.

我先把用户信息注释去掉,然后开始播放。

哈佛公开课 - 计算机科学课程节选