“Chalk boards”的意思、由来-开放百科全书

词条	Chalk boards
释义	SeeBlackboard
随便看	U. S. National Toboggan Championships US National Track Championships U.S. National Transportation Safety Board U.S. National Under-18 Team US National Video Game Team U. S. National Video Game Team U S National Video Game Team U. S. National Whitewater Center U S National Whitewater Center US National Whitewater Center U. S. Naval Academy U.S. Naval Academy Museum U.S. Naval Activities, United Kingdom U.S. Naval Air Corps U. S. Naval Air Corps US Naval Air Station Dirigible Hangar B US Naval Air Station Sunnyvale, California, Historic District US Naval Base Subic Bay U. S. Naval Base Subic Bay U S Naval Base Subic Bay U.S. Naval Base Subic Bay U. S. Naval Communications Station San Miguel U S Naval Communications Station San Miguel US Naval Communications Station San Miguel U.S. Naval Consolidated Brig, Charleston

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。