Traduire à livre ouvert = To translate at sight.
Loin
Revenir de loin = 1. To come back from a distant place. 2. To recover from a very severe illness.
De loin en loin = At long intervals.
Long
*Tout s’use à la longue = Everything wears out in time.
[Tout passe, tout casse, tout lasse.]
Il se promenait de long en large = He was walking up and down, to and fro.
Il en sait trop long = He knows too much.
Il m’a raconté la chose tout au long = He told me every detail of the affair.