The word "曝晒" is formed by combining the characters "曝" and "晒", both of which individually relate to sun exposure. "曝" includes the radical "日" (sun) and the component "暴", conveying the idea of exposing to the sun, often for drying. "晒" also contains the radical "日" and the component "西", meaning to dry in the sun. Together, they create a compound word that intensifies the meaning, referring specifically to the action of exposing something to strong sunlight for drying or bleaching purposes.