An unofficial grey market in the shares has been operating for about two weeks.
一个非官方的股票灰市已经运作了大约两个星期。
《柯林斯英汉双解大词典》
2
A potential employer puts up recruitment posters at an unofficial Labour market.
一个潜在雇主在一个非官方劳动市场张贴招工广告。
3
An effective Buyer Agent will conduct a comparative market analysis, which essentially is an unofficial appraisal, and arrive at a value range for the home.