0 A person's twenties are the period in which they are aged between 20 and 29: --
I'd guess she's in her twenties.
The temperature is expected to be in the twenties tomorrow.
She was born in the twenties.
1 the numbers 20 through 29: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.