1. pyramided his gains by careful reinvestment 他投资谨慎，获利节节增加
2. Seek thou in my pyramid. 你在我的金字塔
3. Next, suppose we put a pyramid on top of the cube. 接著，假设我们在正立方体的顶面摆一个金字塔。
英英解释
n.
1. a polyhedron having a polygonal base and triangular sides with a common vertex
2. (stock market) a series of transactions in which the speculator increases his holdings by using the
3. a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as r v.
1. enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy ad
2. use or deal in (as of stock or commercial transaction) in a pyramid deal
3. arrange or build up as if on the base of a pyramid
4. increase rapidly and progressively step by step on a broad base
