Focus on the pronunciation of exert
English definition of “exert”
/ɪgˈzɜrt/ v [T] (MAKE AN EFFORT)
› to cause yourself to make an effort: She will have to exert herself a lot more if she wants to succeed in this business. exertion
/ɪgˈzɜr·ʃən/ n [C/U] › [U] Physical exertion isn’t always a good thing in a hot climate.