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Dance schools around the country have seen a boost in the number of people wanting to learn how to dance.

全国各地的舞蹈学校都发现：想要学习舞蹈的人越来越多。

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"That's why we need strong rules of the road to guard against the kind of systemic risks we have seen.

VOA: special.2009.09.18

So, more data to come, so this is a clip some of you might have seen in section already.

随着更多数据的出现，就会形成一个标签,有些人可能已在相应章节中看到过了。

哈佛公开课 - 计算机科学课程节选

Listen, I have seen this person's work in these eight context and it's all been great. You know.

他说，我曾经见过这个人在八种环境下工作，而且工作质量都很高。

写推荐书的人 - SpeakingMax英语口语达人

Some experiments claim to have seen signals of dark matter in the form of annual modulation.

BBC: Dark Matter: Experiment to shed light on dark particles

We have seen promising positive commitments from the African Union and African leaders on the issue.

CNN: Is this the beginning of the end of child marriage?

Venture folks have seen a market across the board turn sour on them before.

FORBES: Venture Vetting