Meaning: Literally "bamboo already formed in the heart," symbolising foresight. Usage: Highlights calmness and strategy before action. Example: "他答辩时胸有成竹，条理清晰。" (tā dá biàn shí xiōng yǒu chéng zhú, tiáo lǐ qīng xī) — "He was confident and organized during his presentation."
