cut down

cut down 砍倒，削减

【例句】

◆ Deserts are also created because people cut down trees and dig up grass．由于人们砍树和挖草，沙漠也产生了。（外研版，必修③，Module 4）

◆ In this way they cut down the fat and increased the fibre in the meal．这样，他们减少了饭菜中脂肪的含量，增加了纤维素。（人教版，必修③，Unit 2）