详细解释:vt. (使)降级, (使)退化
vi. (使)降级, (使)退化
词型变化：
名词:degrader动词过去式:degraded过去分词:degraded现在分词:degrading第三人称单数:degrades英语解释：
动词 degrade:
reduce the level of land, as by erosionreduce in worth or character, usually verbally同义词：take down, disgrace, demean, put down