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demonstrations的英文翻譯是什么意思，詞典釋義與在線翻譯：
英英釋義
名詞 demonstration:
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a show or display; the act of presenting something to sight or view
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a show of military force or preparedness
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a public display of group feelings (usually of a political nature)
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proof by a process of argument or a series of proposition proving an asserted conclusion
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a visual presentation showing how something works
