一知半解: have a superficial knowledge of; a smattering of knowledge; half knowledge; have half-baked knowledge; have scanty knowledge; know only a smattering; know only superficially; scanty [hears
实际上我对那里的法规一知半解: i am not exactly sure of the regulations as a matter of fact
知识: 1.(认识和经验的总和) knowledge; know-how; science 短语和例子知识更新 update one's knowledge; the advancement of one's knowledge; 知识化 、专业化 become knowledgeable and professional; 知识就是力量。 knowledge is power.2