刘彬20000词汇巅峰速记

词缀：sub-,sup-,suc-,sus-

意思：下，向下 subway；从下往上 submit；亚于，次于 suburban；后，后面 subsequent；

词缀：-ity -lity -ilty:名词后缀

-itate：使…（动词）

de-：向下

com- col- con- co- cor-：等于with，共同一起；加强语气；

anc-：以前；老/高

词汇

success，succeed，succeeding，successful，successfully，successor，succession，a succession of，successive

necessary，necessitate

degrade，degradation

upgrade，upgradation

gradual，gradually

congress，congressional，congressman

ancestor，ancestry，ancestral

concede，concession