名词
中文翻译：七年一次的
同义词：
['seven-year cycle', 'seven-year term', 'seven-year period']
例句：
-
1. The team has a seven-year cycle of training and competition.
这个团队有一个七年的训练和比赛周期。
-
2. The company's policy is to implement a seven-year cycle for new projects.
公司的政策是实施新的项目的新周期为七年。
-
3.The research project will last for seven years, with an annual review.
这个研究项目将持续七年，每年进行一次审查。