The Chinese word **冲洗** is a compound verb formed by combining two characters with related meanings: **冲** (chōng), which means "to rinse," "to flush," or "to surge," and **洗** (xǐ), which means "to wash." This is a common morphological process in Chinese where two synonymous or semantically related characters are paired to create a more precise or nuanced term. In this case, the combination specifically denotes the action of washing or cleansing with a directed flow of water, as in developing a photograph (**冲洗照片**) or hosing down a surface, merging the concepts of flushing/rinsing (**冲**) and general washing (**洗**) into a single, cohesive idea.