一知半解
词典have a superficial knowledge of：一知半解。
词典a smattering of knowledge：一知半解。
词典half knowledge：一知半解。
词典have half-baked knowledge：一知半解。
词典sciolism：一知半解，肤浅的知识。
自欺欺人
词典be hooked by one's own lies：自欺欺人。
词典cheat oneself and others：自欺欺人。
词典fool oneself as well as others：自欺欺人。