rigorous /ˈrɪɡərəs/ - very strict, punishing /ˈpʌnɪʃɪŋ/ - difficult, might lead to physical hurting, arduous /ˈɑːdjuəs/ - involving a lot of strength and effort, demanding /dɪˈmɑːndɪŋ/ - needing a lot of ability, effort, or skill, backbreaking /ˈbækbreɪkɪŋ/ - physically difficult and makes body sore, exhausting /ɪɡˈzɔːstɪŋ/ - feel extremely tired, tricky /ˈtrɪki/ - difficult to deal with or do because it is complicated and full of problems, tough /tʌf/ - difficult to do or to deal with, strict /strɪkt/ - strongly limiting someone's freedom to behave, gruelling /ˈɡruːəlɪŋ/ - extremely tiring and difficult, and need great effort and determination,

DIFFICULTY B2 EMP

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