to stop or reduce pollution sources
arrêter ou réduire les sources de pollution (arreter ou reduire les sources de pollution)
"Factories must cut off pollution to meet environmental standards."
"Les usines doivent arrêter la pollution pour respecter les normes environnementales." (Les usines doivent **arreter la pollution** pour respecter les normes environnementales.)
to become partners or friends with someone
to oppose or resist something strongly
to begin an action with a clear purpose or plan
to turn ideas or words into practical steps or results
to do something badly or incorrectly
to continue making an effort despite obstacles