"Getting better through hard work" 可以用 "努力变得更好" 来表达。
这个表达式来源于英语中常用的动词短语 "to improve oneself through hard work"，其中 "improve oneself" 表示 "变得更好"，"hard work" 则表示 "努力"。
例句：
She's always working hard to improve herself. (她总是努力提高自己。)
He's determined to get better through hard work. (他决心通过努力变得更好。)
They're determined to improve through hard work. (他们决心通过努力提高。)