The word **流汗** (liúhàn) is a compound formed by combining two independent characters: **流** (liú), meaning "to flow," and **汗** (hàn), meaning "sweat." It follows a straightforward verb-object grammatical structure where the first character acts upon the second, literally meaning "flow sweat." This transparent formation creates the single lexical unit meaning "to sweat," where the combined meaning is a direct and logical sum of its parts, exemplifying a common method of word formation in Chinese.