理论基础 lǐlùnjīchǔ theoretical foundation Origin Definitions Defs Strokes Stroke Words Sentences Sents 理论 理論 lǐlùn noun theory a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained; doctrine基础 基礎 jīchǔ noun basis the root, cornerstone, or starting point for the development of something