to commit yourself to a course of action without a way back
se consacrer à une action sans possibilité de retour (se consacrer a une action sans possibilite de retour)
"He burned his boats when he quit his job to start a business."
"Il a brûlé ses bateaux lorsqu'il a quitté son emploi pour démarrer une entreprise." (Il a brule ses bateaux lorsqu'il a quitte son emploi pour demarrer une entreprise.)
to improve or develop something beyond its current state
to test a product before official release
to operate smoothly and efficiently
to support someone or something strongly
to make someone happy
to make a firm decision or opinion known