bettering
词形变化：
动词过去式: bettered | 动词过去分词: bettered | 动词现在分词: bettering | 动词第三人称单数: betters |
同义词：
improved | superior | improve | enhance | enhanced | healthier | well | in good health | restored | on the mend | improve on | top | outdo | outshine | surpass | change for the better | advance | preferable | over | enrich | tower | exceed | excel | meliorate | ameliorate | best | bettor | wagerer | amend | punter | break | perfect | refine |
反义词：