reduce是否等于cut down

cut down一般指的是实物例：1。削减He tried to cut down on smoking but failed。他试图少抽烟,但没成功。2。缩短Cut down the article so as to make it fit the space available on the paper。把文章缩短一些,这样就能排进报纸有限的版面中。3。砍倒reduce多指数量的减少