Translation
will know, will now how
Ils
sauront
parler
français
à
la
fin
de
leurs
études
.They'll know how to speak French at the end of their studies.
Ils
sauront
parler
beaucoup
de
langues
.They'll know how to speak a lot of languages.
Elles
sauront
toutes
leurs
leçons
par
cœur
.They'll know all of their lessons by heart.