French phrase
Est-ce sûr de ~ ?
Meaning
Is it safe to ___?
When to use it
Asks whether a particular action is safe. It is polite and common in everyday situations.
Example dialogue
Est-ce sûr de boire l'eau du robinet ?
Is it safe to drink tap water?
Non, il vaut mieux acheter de l'eau en bouteille.
No, it's better to buy bottled water.