fall off

US /fɔːl ɔːf/
UK /fɔːl ɔːf/
"fall off" picture
1.

diminuer, baisser

to decrease in quantity or quality; to decline

:
Sales tend to fall off during the winter months.
Les ventes ont tendance à diminuer pendant les mois d'hiver.
His performance has started to fall off recently.
Ses performances ont commencé à diminuer récemment.
2.

tomber, se détacher

to become detached or separated from something

:
The button fell off his shirt.
Le bouton est tombé de sa chemise.
Be careful not to fall off the ladder.
Fais attention de ne pas tomber de l'échelle.