鼓励员工努力工作是每个好雇主的责任。以下是一些简短的英语句子，可以用来表达这个想法：

- Hard work pays off, and we appreciate all the effort you put in.

- Your hard work and dedication are noticed and valued.

- Keep up the great work! Your efforts are making a difference.

- Thank you for your commitment and hard work. We couldn't do it without you.

- We believe in you and your abilities. Keep striving for excellence.

- Your work ethic is impressive and inspiring. Keep up the good work.

- We recognize the time and energy you put into your job, and we're grateful for it.

- Your contributions are invaluable to our team, and we encourage you to continue giving your best effort.

- Your hard work hasn't gone unnoticed. We appreciate everything you do.

- We're proud of the progress you've made, and we're excited to see where your hard work will take us next.