Once only--once for each; that will do.

But face to face--for half an hour.

What's Mr.Chad," she immediately pursued, "doing at Cannes?
Decent men don't go to Cannes with the--well, with the kind of ladies you mean." "Don't they ?" Strether asked with an interest in decent men that amused her.
"No, elsewhere, but not to Cannes.

Cannes is different.

Cannes is better.