"Happy elderly" 这个词组在英语中没有固定的翻译，但是可以用 "happy seniors" 或者 "elderly happiness" 来表示老人们的快乐。

例句：

"The seniors at the retirement home always seem to have a positive outlook and are happy despite the challenges they face."（退休养老院的老人们看起来总是乐观，尽管他们面临着很多挑战，但仍然快乐。）

"We try to create opportunities for the elderly to find happiness and purpose in their pves through various activities and events."（我们尽力为老人们提供各种活动和活动，帮助他们在生活中寻找快乐和目标。）

"The elderly often find joy in spending time with their grandchildren and passing on their wisdom and experiences to the younger generation."（老人们经常在和孙子们一起度过时光并将自己的智慧和经历传递给年轻一代时找到快乐。）