Usages of efficace
En écoutant un podcast, tu es plus efficace.
By listening to a podcast, you are more efficient.
Elle est très efficace en repassant et en pliant ses vêtements.
She is very efficient while ironing and folding her clothes.
Le responsable affirme que la nouvelle mesure est efficace.
The official affirms that the new measure is effective.
Pensez-vous que cette approche soit efficace ?
Do you think that this approach is effective?
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