grayingn.变灰动词gray的现在分词.grayadj.灰色的；暗淡的n.灰色；暗淡v.变灰色；使 ... 变灰色Grayn.格雷(男子名)Gray-breasted Martinn.灰胸崖燕gray brown forest soil灰棕色森林土gray brown desert soil灰棕色荒漠土,灰棕漠境土gray-level histogram灰度直方图Gray-headed Mannikinn.灰头文鸟gray platelet syndrome灰色血小板综合征gray connection theory灰色关联理论gray enveloping models灰色包络模型gray correlation grade灰关联度Gray-rumped Swiftletn.小灰腰金丝燕