• Lesson 3 第三课 你吃过饭了吗?(Have you had your dinner?)(2007-10-12 10:33:00,439,)
• Lesson 2 第二课 你好！(How do you do?)(2007-10-12 10:31:00,370,)
• Lesson 1 The Four Pitched Tones in Mandarin Chinese(2007-10-12 10:30:00,339,)