Some pairs of words that work closely together are hyphenated to emphasize their relationship with each other.

某些共同表达含意的单词对需要加连字号，以强调其相互间的联系。

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Power words that work well include: proof, evidence, facts and figures, research, logic, tried and tested, safe, reason.

具有说服力词汇包括：证明、证据、事实和数字、研究、逻辑、尝试、安全及理由。

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If so, some professional advice from the book "Words that Work" by Frank Luntz on effective communication might be helpful.

若真是这样，《成功有效的演讲》一书提出了一些专业的建议，可能会有所帮助。

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That would set it apart from most of the video news on the web, which typically involves a talking head speaking words that would work just as well (or poorly) as a text article or the script of a radio segment.

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There are lots of words for that and none of which work very well.

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And I want to stress very strongly that the words that I heard from him today give us the sense that together we work also for the sake -- for the purpose of Polish security.

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