temps (durée) (1) norme (1) vitesse (1) bien-être social (1) papier (1) besoin (1) modèle (1) fleur (1) science économique (1) coût (1) comparaison (1) Comparison (1) Costs (1) Scenarios (1) English (1) Work (1) Time (1) Speed (1) Social service (1) Social problems (1) Scenarios (1) Public welfare (1) Plots (Drama, novel, etc.) (1) Performance (1) Paper (1) Numerical analysis (1) Motion picture plays (1) Humanitarianism (1) Functions (1) Example (1)