名词
中文翻译：十年
同义词：
['decade', 'tenure', 'term', 'period例句：1. The company has been in operation for over a septennium.（这家公司已经运营了超过十年。）']
例句：
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1. The company has been in operation for over a septennium.
这家公司已经运营了超过十年。
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2. The scientist has devoted his life to research for the last septennium.
这位科学家已经为研究奉献了他的一生。
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3. During the first septennium, they were able to complete their project on time.
在第一个十年期间，他们能够按时完成他们的项目。