Keep working hard, and you will achieve success.

继续努力，你就会成功的。

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He would keep working hard on something for many hours till midnight.

他会为一件事情奋战数个小时，直至午夜。

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Keep it up! You are working really hard. You are such a great worker.

再接再厉哦。你做得真不错。真是个努力的学生！

I'm glad 课堂 - SpeakingMax英语口语达人

Keep it up! I know you can do it. You're working very hard.

再接再厉哦！相信你行的。你学得非常努力。

It depends on 课堂 - SpeakingMax英语口语达人

And keep working hard, keep paying attention, because your teachers know more than you do.

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But overall it was a positive week, and I've just got to keep working hard.

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If not, I have to keep working hard and keep knocking hard on the door.

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