英 [grə'deɪt]美 ['gredet]
vt. 使逐渐转化；使顺次排列vi. 逐渐转化；顺次排列
vt. 使逐渐转化；使顺次排列
vi. 逐渐转化；顺次排列
gradate (v.)
"pass by imperceptible degrees," 1753, back-formation from gradation. Related: Gradated; gradating.
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