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pyramid(al) surface的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 pyramid:
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a polyhedron having a polygonal base and triangular sides with a common vertex
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(stock market) a series of transactions in which the speculator increases his holdings by using the rising market value of those holdings as margin for further purchases
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a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as royal tombs in ancient Egypt
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enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts
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use or deal in (as of stock or commercial transaction) in a pyramid deal
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arrange or build up as if on the base of a pyramid
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increase rapidly and progressively step by step on a broad base
