Focus on the pronunciation of exercise
English definition of “exercise”
/ˈek·sərˌsɑɪz/ n [C] (PRACTICE)
› an action or actions intended to improve something or make something happen: The military exercises will involve several thousand soldiers. The whole thing was an exercise in futility (= actions that were useless). › An exercise can be written work that you do to practice something you are learning: The book has exercises at the end of every chapter.