off-the-books deal black market operation black market transaction
There´s a black market in rationed goods.
实行定量配给的商品存在黑市交易。
—— 柯林斯例句Black - marketing and overcharging grew to proportions far beyond OPA policing capacity.
黑市交易与高价销售盛行,物价管理局难以控制。
—— 给力词典精选The police are cracking down on black - market trading.
警察正在处罚黑市交易。
—— 给力词典精选It is aimed at stopping the black market.
它的目的是制止黑市交易。
—— 给力词典精选Don´t exchange money on the black - market in case you are short - changed by someone.
别去黑市交易外汇,免得碰到切汇的人!
—— 给力词典精选