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challenge (n)/ ˈtʃæl.ɪndʒ//ˈtʃæl.ɪndʒ/something that needs great mental or physical effort in order to be done successfully and therefore tests a person's abilitysự thử thách ![]() Finding a solution to this problem is one of the greatest challenges faced by scientists today. You know me - I like a challenge. Writing a novel proved to be a significant challenge for the aspiring author, testing both creativity and perseverance. Completing a marathon is a formidable physical challenge that many athletes train for months to conquer. Solving the complex mathematical problem posed a serious challenge for the students, requiring deep analytical thinking. Designing and executing a successful marketing campaign can be a challenging task, demanding strategic planning and innovation. Từ vựng khác:include , solution , performance , courage , corporation |