老人们的英文：
old folks

参考例句：

Old men sat along the mole and fished.
老人们沿防波堤坐着钓鱼。

The lack of facilities for elderly people has cast doubts on the whole of the redevelopment scheme.
缺乏给老人们的设备，这使人对整个重新发展计划产生怀疑。

America's lack of public transportation means that when the elderly cannot drive, they cannot even go shopping
公共交通的缺乏意味着当老人们到了不能开车的时候，连购物都办不到了。

The old people liked to sit around the stove, chewing the cud of their lost youth.
老人们喜欢围坐在火炉边，漫谈他们已逝的青春时代。

I'm not sure I follow him right. Does he mean (that) Sydney is an ideal place for old people?
我不清楚我搞懂了他的意思。他是不是说悉尼是老人们生活的理想场所?

old是什么意思：
adj. 年老的；陈旧的；古老的；以前的；原来的
n. 古时

The Old Mandarin
老官吏

You old misery!
你这个爱抱怨的老家伙！

It is an old aphorism.
这是一句老格言。

Old friends and old wine are best
朋友是旧的好;古交友情深,陈酒香味醇

Old friends and old wines are best
陈酒味醇,老友情深

folks是什么意思：
[ folk ] 的复数形式
n.[C] 亲人，本地人，当地人，【口】大伙儿，各位

Idle folks have most labour
懒汉总嫌活太多

Idle folk have the least leisure
懒人少空闲

Greedy folks have long arms
心贪手长

Idle folks lack no excuses.
懒汉借口多。

Different strokes for different folks.
不同的人有不同的兴趣和爱好。