1. A vigorous, strenuous, or concentrated exertion of physical or mental energy directed toward accomplishing a goal
The athlete made an intense effort to win the championship.
O atleta fez um esforço intenso para ganhar o campeonato.
2. A determined and powerful attempt to achieve something despite difficulties
Through intense effort, she managed to complete her degree.
Com esforço intenso, ela conseguiu completar seu diploma.