n.70至79岁的人
adj.七十岁的(人)；七十至八十岁的(人)

原形：septuagenarian复数：septuagenarians

The septuagenarian walked slowly, his cane tapping against the pavement with each step.
这位七旬老人缓缓而行，每走一步，拐杖就会敲击人行道。
She was amazed to discover that her new neighbor was a septuagenarian artist.
她惊讶地发现她的新邻居是一位七旬艺术家。
The septuagenarian's wisdom and experience were highly respected by everyone in the community.
这位七旬长者的智慧和经验在社区里备受尊敬。
He had always dreamed of traveling the world, and at seventy, he finally got the chance.
他一直梦想环游世界，在七十岁时，他终于得到了机会。
The septuagenarian's health began to decline after she stopped exercising regularly.
这位七旬长者停止规律锻炼后，健康状况开始下降。
They celebrated their parents' seventieth birthdays with a big family dinner.
他们为父母庆祝了七十岁生日，举办了一场盛大的家庭晚餐。
The septuagenarian was an avid reader and had a vast collection of books in his home.
这位七旬长者酷爱阅读，家中藏书丰富。
Despite his age, the septuagenarian still had a sharp mind and quick wit.
尽管年事已高，这位七旬长者仍然思维敏捷，口齿伶俐。
She felt proud to be part of a community that valued and supported its septuagenarians.
能够成为这样一个重视和支持七旬长者的社区的一员，她感到自豪。
The septuagenarian had lived through many historical events and often shared his stories with others.
这位七旬长者经历了许多历史事件，经常与他人分享他的故事。