No matter how old you get, there will always be things beyond your understanding.

不管你多大了，总会有你无法理解的事情。

youdao

No matter how old you are, I urge you to never stop experimenting.

无论你年龄多大，我都愿意催促你去尝试，不要停止脚步。

youdao

I assume that he may say “Shi’er (Things)” at least. If you are female, he would say “Shi’er Ma, the mother of things”, no matter how old you are.

我估计他最起码要说你“事儿”，假如你是女的，他还会说你“事儿妈”，不管你有多大岁数，够不够做他妈。

youdao

Maybe it was how you felt in my hand or how shiny you looked no matter how old you became.

FORBES: Bye Bye Blackberry

High school is certainly a head-scratcher, no matter how old you are, but the mathematics of social hierarchies can't hold a candle to the mysteries of the buckyball.

ENGADGET: Alt-week 8.4.12: buckyballs, bosons and bodily fluids Alt

Some of things that would tell you, no matter how old the child is chronologically, to tell you what's going on in the brain.

NPR: Pediatrician: What Parents Should Know About Autism