a fraudulent business practice involving some form of pyramid scheme e.g., the chain of distribution is artificially expanded by an excessive number of distributors selling to other distributors at progressively higher wholesale prices until retail prices are unnecessarily inflated
造句
The pyramids are (a) testimony to the Ancient Egyptians\\\' engineering skills. 金字塔是古埃及人工程技術精湛的豐碑。
A pyramid of stones marked the spot. 那地點用一堆堆成金字塔形狀的石頭作了標記。
Egypt is famous for its grand pyramids. 埃及以巨大的金字塔聞名。
There are many mysterious stories about the Egyptian pyramids. 關于埃及金字塔有許多神秘的故事。