If you're in a very small group, current events can be a good topic to break the silence.

如果你所在的小组很小，有关目前正在进行的活动的问题是个很好的，可以用来打破沉默的话题。

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The article first gives out a very brief introduction about the purpose and meaning of choosing this topic and the current research situation at home and abroad.

本文首先对于文章的选题意义、目的以及国内外关于该题目的研究现状做了提纲挈领的介绍。

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