knowledge/knowledgeable

knowledge /ˈnɔlidʒ/ n.［u］ 1. 知识，学问： He has a good knowledge of the English language but not much knowledge of English history. 他有丰富的英语知识，可是对于英国史知道得不多。2. 知道；理解；认识：my knowledge of Mr. Smith 我对史密斯先生的认识 3.用于习语 have no knowledge of 不理解；不认识：I have no knowledge of what he said.我不理解他所说的。 to one’s knowledge 据…所知，就某人所知：Did anyone arrive late?” “Not to my knowledge.” “有人迟到了吗？”“这我就不知道了.”

 knowledgeable /ˈnɔlidʒəbl/ adj.博学的，有见识的，知识渊博的：knowledgeable about antiques对古物很在行Her lawyer seemed very knowledgeable and experienced.她的律师似乎既有知识又有经验。He made some knowledgeable remarks at the meeting.他在会上的发言颇有见地。