胸有成竹 xiōng yǒu chéng zhú

xiōng yǒu chéng zhú set phrase to imaging a complete of bamboo [before drawing it]; to plan in advance; a card up one's sleeve; forewarned is forearmed
Domain: Idiom 成语
Notes: (CC-CEDICT '胸有成竹'; Guoyu '胸有成竹')