to complete missing parts of understanding or knowledge
compléter les parties manquantes de la compréhension ou des connaissances (compléter les parties manquantes de la compréhension ou des connaissances)
"Teachers help students fill in gaps in their learning."
"Les enseignants aident les élèves à combler les lacunes dans leur apprentissage." (Les enseignants aident les élèves à **combler les lacunes** dans leur apprentissage.)
to study or work late into the night
to relax by doing something calming
to focus your mind completely on peace and relaxation
to decide something after considering it for a while
to have very little of something left
to give help or approval to something