等于单词improve ，中文意思是v. 康复，健康好转超过，胜过提高……的价值改善，变得更好

例如

He made a genuine attempt to improve conditions.他真心实意地努力改善环境。

Our first priority is to improve standards.我们的头等大事是提高水平。

It's never too late to improve your diet.改善饮食什么时候都不嫌晚。