degrade

di'greid

六级托福雅思 Collins 1

v. reduce the level of land, as by erosion
v. lower the grade of something; reduce its worth

v. (使)降级, (使)退化

Collins 星级

11,309

BNC 频率

8,440

使用频率

degrade 由前缀 de-（表示向下、减少）和词根 grade（表示等级、级别）组成，意思是降低等级或质量。

例句

1. The chemicals in the river can degrade the water quality.

河里的化学物质可能会降低水质。

2. He felt that the constant criticism would degrade his self-esteem.

他觉得不断的批评会降低他的自尊心。

3. It's important to recycle to prevent plastics from degrading the environment.

回收利用很重要，以防止塑料污染环境。