金字塔( pyramid的名词复数 )；金字塔形的物体（或一堆东西）；金字塔式的组织（或系统）；棱锥（体）
同义词：Great PyramidPyramids of Egypt
v.enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amountsuse or deal in (as of stock or commercial transaction) in a pyramid dealarrange or build up as if on the base of a pyramidincrease rapidly and progressively step by step on a broad basethe great pyramid大金字塔
pyramid scheme金字塔骗局；非法传销
pyramid selling宝塔式销售；金字塔销售法
food pyramid食物金字塔
inverted pyramid倒金字塔（写作结构）