名词
中文翻译：Unknown
同义词：
['protracted', 'extended例句：1. Long-term planning is essential for success.（长期规划对于成功至关重要。）']
例句：
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1. Long-term planning is essential for success.
长期规划对于成功至关重要。
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2. The project will take a long time to complete.
这个项目需要很长时间才能完成。
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3. The company has been in operation for over 50 years, demonstrating its long-term commitment tothe community.
该公司运营超过50年，展示了其对社区的长期承诺。