Focus on the pronunciation of cross-section
English definition of “cross-section”
/ˈkrɒssekʃən/ noun [C]
› something that has been cut in half so that you can see the inside, or a model or picture of this: This diagram shows a cross-section of the building and the layout of offices on all four floors.
› a small group which represents all of the different types within the total group: The study examined data from 4,100 adults representing a cross-section of the U.S. population.