black economy 的英语意思
black economyˌblack eˈconomy noun [singular] 
查看全部语言翻译 business activity that takes place secretly, especially in order to avoid tax秘密进行的商业活动，尤指为逃税而从事的地下经济活动
查看全部语言翻译 business activity that takes place secretly, especially in order to avoid tax秘密进行的商业活动，尤指为逃税而从事的地下经济活动