Very short reach (VSR) is an optical communication system to transmit STM-64 data over a short distance (about 300 m).

甚短距离传输(VSR)是一种用于短距离(约30 0 m)内进行STM - 6 4帧数据的光传输系统。

youdao

I'm 64 years old now, but I always feel young when I'm cracking jokes.

BBC: Burma: Moustache Brothers keep on telling jokes

Yes, the lyrics of The Beatles' When I'm 64 almost make for a half-decent joke to the opening line of an article, shame that Paul McCartney is 63 and Ringo Starr , 65.

FORBES: McCartney And Starr Sue EMI Over Unpaid Royalties

I'm in 1-64 Bravo Company, 1st Platoon, Alpha Section of the Humvee elements.

NPR: Remembering Army Pfc. Kenneth Zeigler