如果像肯尼迪这样的人愿意保持演讲的简短以最大化他们作为演讲者的效力，我们也应该足够聪明做同样的事情。
If people like Kennedy are willing to keep it short to maximize their effectiveness as speakers, we should be smart enough to do the same thing.
我们也可以要求他们做一个简短的演讲。
该网站也可用来记录和发送简短的视频消息。
The site can also be used to record and send short video messages.
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