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名词
n. 示范；表演
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showing something
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We watched a cookery demonstration at school.
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我们在学校观看了烹调示范。
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名词
n. 示威
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group of people walking or standing together in public to show that they feel strongly about something
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On Wednesday morning they had a mass demonstration
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星期三上午他们举行了群众示威游行。
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名词
n. 证明
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a clear proof
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The teacher gave us a demonstration that the earth is round.
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老师给了我们地球是圆的一项证明。
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