柯林斯詞典black economy 1. N 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 黑色經濟; 國家收入中所存在的非法未申報的那部分逃稅收入 返回 black economy劍橋詞典business activity and income that people do not record in order to avoid paying tax on it 黑色經濟（指為逃稅而隱瞞收入的地下經濟活動） 返回 black economy