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1·They have been cutting down the trees and bulldozing the land.

他们正砍倒树木，推整土地。《柯林斯英汉双解大词典》

2·The broadscale cutting down of trees is damaging the environment.

对树木的大规模砍伐正在破坏环境。《牛津词典》

3·It would have meant cutting down over 200 trees, including oaks and hickories.

这就意味着砍伐200多棵树，包括栎树和山胡桃树。《柯林斯英汉双解大词典》

4·Humans are cutting down many trees to build more houses.

人类正在砍伐许多树来建造更多的房子。

5·Instead of cutting down trees, recycle used paper to meet the need of paper-making.

为了满足造纸需求，要回收利用废纸，而不是砍伐树木。

6·By cutting down trees for firewood and using the space to build houses, humans leave chimpanzees with smaller areas to live in.

人们砍伐树木用作柴火，并利用这些空间建造房屋，给黑猩猩留下了的生活区域更小了。

7·Although the results can be unpredictable and require a little cleanup, it can give artists room to experiment (实验) by cutting down the time it takes to color each picture.

虽然结果可能不可预测，且做完之后要稍作清理，但是它缩短了每幅图的上色时间，从而让艺术家有试验的空间。

8·Try cutting down the cost first.

开始先尝试削减成本。

9·We must stop cutting down forests.

我们应当停止砍伐森林。

10·We are cutting down the rainforest.

我们正在砍伐掉雨林。