Focus on the pronunciation of stress
English definition of “stress”
/stres/ n [C/U] (WORRY)
› worry caused by a difficult situation, or something that causes this condition: [U] Luis is under a lot of stress right now. [C] It’s hard to cope with the stresses of raising a family. stressful
/ˈstres·fəl/ adj › Working in the emergency room of a major hospital is highly stressful work.