But there were unifying themes, too: tents, social media, the "human microphone" - where the crowds chant back phrases uttered by a speaker, and shaky "jazz hands" to indicate agreement.

但也有统一的主题：帐篷、社会媒体和麦克风-人群跟着一个发言人喊口号，并一起挥手表示认同。

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The next time you need to memorize lists of vocabulary or expressions, try making them into a "Jazz Chant."

下次你需要记忆单词或短语表的时候，记得把他们编记“爵士旋律”中去。

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