标题（Title） 一般不超过80个字符
国铁集团
（4 个字符）
关键词（KeyWords）一般不超过100个字符
易学汉语,learn chinese,chinese course,chinese learning,chinese online,video,audio,basic Chinese,casual Chinese,easy Chinese,learn Mandarin,how to learn Chinese,Character of the Day,Chinese Language Video for the Classroom,e-chinese learning,学汉语,对外汉语,学汉字,对外汉语教材,在线教师,Live Tutoring,语音实验室,Pronunciation Lab,词卡,Word Cards,汉语800字
（320 个字符）
描述（Description）一般不超过200个字符
Learn Chinese online anywhere and anytime; My Easy, Effective and Efficient way to learn Chinese; Easy,Effective,Efficient,E-Learning
（133 个字符）
