Focus on the pronunciation of frustration
English definition of “frustration”
/frʌˈstreɪ·ʃən/ n [C/U] (ANNOYING SITUATION)
› disappointment or discouragement, or a discouraging situation: [U] He finally quit in frustration. [U] The teacher confirmed widespread frustration with the lack of up-to-date textbooks. [C] You have to learn to cope with these frustrations.