Random house Webster’s dictionary of American English

　　From apple pie to zilch, the all-new Random H Webster's Dictionary of American English captures the flavor, idiom, style, and substance of American English. 　　This dictionary's unique features make it an essential resource for learners and teachers of English: 　　· Created from the Random House Living Dictionary Database TM 　　· Recommended by a distinguished Advisory Board of consultants 　　· Two pronunciation systems--standard American dictionary symbols and 　　 International Phonetic Alphabet (IPA) symbols 　　· Tens of thousands of lively example phrases and sentences 　　· Main entries for hundreds of common English roots, each with a 　　 list of English words derived from the root 　　· Easy-to-understand bracketed grammar codes 　　· Full-page contextual illustrations 　　· Pronunciation guide with key words selected from English, Italian, French,German, and Spanish 　　 本书完全根据美国英语编写,词汇50000余条,以国际音标和美语词典音标注音.