knowledge

n.知识；熟悉，了解

knock-on, knock-out, knock-up, knockabout, knocker, knoll, knot, knot-hole, knotty, know, know about, know better than, know no bounds, know of, know sb. by name, know-all, know-how, knowing, knowingly, knowledgable, knowledgeable, knowledgeably, known, known as, knuckle, knuckleduster, knucklehead, KO, koala, kobo, kohl, kohlrabi, kola, kook, kookaburra, kooky, kopeck (also kopek), koppie (also kopje), Koran, Koranic,