Black Market Economy黑市经济
review of black political economy黑人政治经济评论
The black economy黑市经营
Black Economy Taskforce黑色经济工作组
N（名词） that portion of the income of a nation that remains illegally undeclared either as a result of payment in kind or as a means of tax avoidance 黑色经济; 国家收入中所存在的非法未申报的那部分逃税收入