gradation
n. (色彩、颜色、次序、音调等的)渐变;分等级;(各种状态、性质等的)分阶段渐变;元音交替
n.分等级,顺序,阶级
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n. (色彩、颜色、次序、音调等的)渐变;分等级;(各种状态、性质等的)分阶段渐变;元音交替
n.分等级,顺序,阶级
debtor expressionless gimlety knothole shabbiness tabby toner