过度开发使这片森林的生态环境严重退化。

Overdevelopment has left the forest ecosystem severely ___degraded.

在公共场合被这样嘲笑让他感到非常羞辱。

Being laughed at like that in public made him feel completely ___degraded.

这些有机废弃物在地里很快就会分解。

These organic wastes will quickly become ___degraded in the soil.