The Chinese word "爬山" is formed through a straightforward verb-object compound structure, where the first character "爬" (pá) means "to climb" or "to crawl," and the second character "山" (shān) means "mountain." When combined, they create a single lexical unit that functions as a verb meaning "to climb a mountain." This formation is highly logical and typical of Chinese morphology, where an action ("爬") is directly paired with its target or location ("山") to specify the activity, resulting in a concise and semantically transparent term for the recreational or physical activity of mountain climbing.