名词
中文翻译：艰苦的工作
同义词：
['hardship', 'hard work', 'tough assignment']
例句：
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1. He took on a tough assignment to complete the project ahead of schedule.
他接受了一个艰巨的任务，以提前完成项目。
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2. The hardships of life often test our strength and resilience.
生活中的艰难困苦常常考验我们的力量和韧性。
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3. Despite the hardships, she persevered and achieved success in her career.
尽管面临困难，她却坚持不懈，并在事业上取得了成功。