名词
中文翻译：问题期限
同义词：
['period', 'term', 'period of time']
例句：
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1.The issue term for this project is two years.
这个项目的有效期是两年。
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2. During the issue term, we need to make sure all the necessary preparations.
在有效期内，我们需要确保所有必要的准备工作。
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3. The issue term has been extended due to the unexpected delay in delivery.
由于交付延迟，问题期限已被延长。