He used to be a hard-working family man.

他曾经是个努力工作的好男人

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You're talking to your co-worker and your co-worker says "Oh, it's because you're so hard working."

你跟你的同事提到的时候，你的同事会说，“哦，这是因为你工作太卖力了。”

That's why 课堂 - SpeakingMax英语口语达人

You want people that are smart,incredibly hard-working.

聪明能干,异常勤勉

耶鲁公开课 - 金融市场课程节选

I think that, in general, universities here are just looking for people who are intelligent and hard-working,

总的来说，我认为这里的大学希望招收聪明又刻苦的学生，

如果是在考虑留学 - SpeakingMax英语口语达人

So, you know, as long as you are hard-working and you are able to critically think,

所以，只要你学习刻苦，具有批判性思维，

如果是在考虑留学 - SpeakingMax英语口语达人