"勤力"的英文金句如下：
* Constant effort is the key to success.
* Work hard, be diligent, and you will succeed.
* Never give up, be persistent, and you will achieve your goals.
* Industry is the mother of success.
* Perseverance is the key to success.
* Sustained effort pays off in the end.
* The secret of success is to work hard and keep going.
希望以上這些句子可以幫助到你。