fifty years
Il reste cinquante ans à vivre à l'Empire Klingon.
The Klingon Empire has fifty years left to live.
— Star Trek VI : Terre inconnue (1991)
Ce n'est pas si facile d'apprendre une nouvelle langue après cinquante ans.
It’s not so easy to learn a new language after the age of fifty.
Ils fêtent leurs cinquante ans de mariage.
They are celebrating their fiftieth wedding anniversary.
Fifty years old.
Our school is fifty years old.
On voyage plus facilement aujourd'hui qu'il y a cinquante ans.
It is easier to travel today than it was fifty years ago.
C'est l'été le plus chaud que nous ayons eu en cinquante ans.
It's the hottest summer we've had in fifty years.
C'est le vieux qui a planté cet arbre il y a cinquante ans.
It was the old man who planted this tree fifty years ago.
My father is fifty years old.
William a cinquante ans maintenant.
William is fifty years old now.