他们说他们会努力学习，不辜负父母对他们的期望。
They said they would study hard and live up to their parents' expectations.
他们不工作，努力为世界其实休息。
经过他们百折不挠的努力，现在终于达到了目的。
The goal has now been finally attained through their dauntless efforts.
经过他们百折不挠的努力，现在终于达到了目的。
The goal has now been finally attained through their dauntless efforts.
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