The Chinese word 延伸 (yánshēn) is a compound verb formed by combining two characters with related meanings: 延 (yán), which means "to prolong" or "to extend in time or length", and 伸 (shēn), which means "to stretch out" or "to extend in space or scope". When paired, these two morphemes reinforce and complement each other, creating a single, more nuanced concept that means "to extend, stretch, or spread out" in a comprehensive sense, often describing the continuation of something physical (like a road or line) or abstract (like influence or a concept) in both spatial and temporal dimensions. This formation follows the common pattern in Chinese where synonymous or semantically close characters are combined to create a word with a precise and often intensified meaning.