pyramid selling
US /ˈpɪr.ə.mɪd ˌsel.ɪŋ/
UK /ˈpɪr.ə.mɪd ˌsel.ɪŋ/

1.
金字塔銷售, 傳銷
a system of selling goods in which people are paid to sell products, but are also paid for recruiting other people to sell them. This system is illegal in many countries.
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The company was shut down for engaging in pyramid selling.
該公司因從事金字塔銷售而被關閉。
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Many people lost money in the pyramid selling scheme.
許多人在金字塔銷售計畫中蒙受損失。