vt. 减少, 分解, 降低, 使衰退, 把...分解, 把...归纳

vi. 减少, 减肥, 缩小

[计] 缩小

v. cut down on; make a reduction in

v. make less complex

v. bring to humbler or weaker state or condition

v. simplify the form of a mathematical equation of expression by substituting one term for another