something that makes things or people equal

They see education as a great equalizer. 他们认为教育是促成平等的重要因素。

the point in a game or competition that gives both teams or players the same score

He scored an equalizer during the closing minutes of the game. 在比赛的最后几分钟里他进球将比分扳平。

electronic equipment that adjusts (= makes slight changes to) the frequency of recorded sound to make it sound better

Stereos typically have adjustable equalizers that boost or cut bass or treble frequencies. 立体声音响通常带有可调均衡器，可以加强或降低低音或高音的频率。