名词中文翻译1
中文翻译：Unknown
同义词：
['duration', 'interval', 'span']
例句：
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1.The period of the experiment was from Januaryto March.
实验的时期是从一月到三月。
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2. During his tenure as president,he had a period of great success.
在他担任总统期间，他取得了巨大的成功。
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3.The company's performance has been ina period of decline.
该公司的业绩一直处于下滑期。