each other

US /iːtʃ ˈʌð.ər/
UK /iːtʃ ˈʌð.ər/
"each other" picture
1.

l'un l'autre, les uns les autres

used to show that each of two or more people or things does something to the other or others

:
They love each other very much.
Ils s'aiment beaucoup l'un l'autre.
We help each other with our homework.
Nous nous aidons les uns les autres avec nos devoirs.