The word 讲述 is formed by combining two characters, 讲 (jiǎng) and 述 (shù), which each independently carry the core meaning of "to speak" or "to explain". This is a common method of word formation in Chinese where two semantically similar or related characters are joined together to create a single, more precise, and often slightly more formal compound word. The process reinforces and narrows the shared concept; in this case, the fusion of 讲's sense of "to tell" or "to lecture" with 述's sense of "to relate" or "to narrate" produces the combined meaning of "to narrate", "to recount", or "to give an account of", emphasizing a detailed and structured act of telling.