pyramid
英 ['p?r?m?d]
美['p?r?m?d]
- n. 金字塔；角錐體
- vi. 漸增；上漲；成金字塔狀
- vt. 使…漸增；使…上漲；使…成金字塔狀
英英釋意
- 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 rising market value of those holdings as margin for further purchases