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- 他天天孜孜不倦地埋头苦干，直到工程竣工为止。
He kept banging away at his work day by day, until eventually the project was finished.
- 我们的总理孜孜不倦地为人民工作。
Our Prime Minister is unwearied to work for people.
- 刻苦努力和孜孜不倦是成功的梯阶。
Hard work and long hour is rungs in the ladder of success.
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