单词	progressivity
释义	pro·gres·siv·i·ty (prō′grĕ-sĭvĭ-tē, prŏg′rĕ-) n. pl. pro·gres·siv·i·ties The quality or degree of being progressive: "Proponents of progressivity often argue that higher-income people should pay higher taxes because they benefit more from government" (National Review).
随便看	suddenness sudden oak death Sudeten Sudetenland Sudetes sudoku sudoriferous sudorific Sudra suds sudsy sue suede suer suet Suetonius Suez Suez Suez Suez Canal suf. suff. Suff. suffer sufferable

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