ameliorate
过去式：ameliorated
过去分词：ameliorated
现在进行时：ameliorating
词形变化：
动词过去式: ameliorated | 动词过去分词: ameliorated | 动词现在分词: ameliorating | 动词第三人称单数: ameliorates |
同义词：
improve | better | amend | perfect | upgrade | enrich | enhance | promote | meliorate |
反义词：
词义辨析：
同义参见:
promote
improve
反义:
vt.vi.改善; 改良
deteriorate