灰色收入

off-the-books income

例句：

Wen vowed to crack down on and ban illegal income, regulate off-the-books income, and resolutely reverse the widening income gap.

溫總理承諾將嚴禁和打擊非法收入，規范灰色收入，堅決扭轉收入差距擴大的趨勢。

*以上新聞由ChinaDaily雙語手機報提供