French phrase
Appliquez ~ sur ~ si c'est pertinent.
Meaning
Apply ___ to ___ if appropriate.
When to use it
A polite instruction to apply something when suitable. Often used for medical or household care.
Example dialogue
Appliquez la crème sur la plaie si c'est pertinent.
Apply the cream to the wound if appropriate.
D'accord, je l'appliquerai.
Okay, I'll apply it.