greyout灰晕,灰暗greyadj.灰色的n.灰色vi.变成灰色=<美>grayGrey Systematic Theory灰色系统理论grey regional planning灰色区划greying at the temples两鬓斑白Grey-backed Starlingn.灰背椋鸟grey decision analysis灰色关联分析grey associated degree灰色关联度Grey-crowned Babblern.灰冠弯嘴鹛grey theory prediction灰色预测grey computation model灰色计算模型Grey relational theory灰色关联理论