a book or set of books containing many articles arranged in alphabetical order which deal either with the whole of human knowledge or with a particular part of it
发音
例句
1. The encyclopedia fell to the floor with a thud. 那本百科全书砰的一声掉到地上。 2. Geoff is a walking encyclopedia. He knows about everything. 杰夫是个活百科全书,他什么都懂。