He was a neighbor of my grandparents' age, long since retired.

他和爷爷家住邻居，跟爷爷一样年纪，也早就退休了。

youdao

He was a neighbor of my grandparents age, long since retired.

他是外公家邻居，和外公差不多年纪，也早就退休了。

youdao

He was a neighbor my grandparents' age, long since retired. He'd come to the house several times before on social calls.

他是和我爷爷奶奶同龄的邻居，已经退休很长时间了，以前，他也曾经礼节性地来访过几次。

youdao

The event's masterminds and co-founders, Joe De Sena and Andy Weinberg, had long since retired to the warmth of the Heartland Brewery around the corner.

WSJ: This Is One That's for the Spartans

You would have long since retired your Suburban.

FORBES: Tax My Carbon

Outdated mainframes, COBOL applications whose developers have long since retired, if not died, and code everyone is afraid to touch have long been well-known problems in IT for at least a decade.

FORBES: Is Your Firm Running An IT Deficit