词典释义：
[mass noun]the showing of something's existence or truth by giving proof or evidence
证明，证实
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it is not capable of mathematical demonstration 这无法用数学方法证明
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[count noun]
his demonstration that feature films could be both art and social treatise. 他关于故事片可同时是对艺术和社会问题的探讨的证明。
the outward showing of feeling
感情流露（或表达）
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[count noun]
physical demonstrations of affection. 爱意的肢体表达。
[count noun]a practical exhibition and explanation of how something works or is performed
示范，演示
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a microwave cookery demonstration. 微波炉烹调演示。
a public meeting or march protesting against something or expressing views on a political issue
示威集会，示威游行。
"late Middle English （also in the senses ‘proof provided by logic' and ‘sign, indication’）： from Latin
