课程目录：
├──牛津4--6阶音频
| ├──level 4
| | ├──4 Dragon Danger.mp3 6.37M
| | ├──4 Missing!.mp3 7.37M
| | ├──4 Quick! Quick!.mp3 4.67M
| | ├──4 The Moon Jet.mp3 4.96M
| | ├──4 The Raft Race.mp3 7.84M
| | ├──4 The Red Coat.mp3 5.29M
| | ├──4 The Spaceship.mp3 8.15M
| | └──4 Wet Feet.mp3 5.35M
| ├──level 5
| | ├──5 Craig Saves the Day.mp3 6.64M
| | ├──5 Dolphin Rescue.mp3 6.63M
| | ├──5 Egg Fried Rice.mp3 7.43M
| | ├──5 Hungry Floppy.mp3 11.08M
| | ├──5 Husky Adventure.mp3 10.91M
| | ├──5 Looking After Gran.mp3 10.70M
| | ├──5 Seasick.mp3 6.70M
| | └──5 Trapped!.mp3 11.61M
| └──level 6
| | ├──6 Gran's New Blue Shoes.mp3 8.32M
| | ├──6 Hairy-Scary Monster.mp3 12.73M
| | ├──6 Ice City.mp3 8.48M
| | ├──6 Mountain Rescue.mp3 11.86M
| | ├──6 Save Pudding Wood.mp3 10.42M
| | ├──6 Secret of the Sands.mp3 13.28M
| | ├──6 The Lost Voice.mp3 12.01M
| | └──6 Uncle Max.mp3 10.91M
└──牛津树4-6书籍视频
| ├──level 4
| | ├──Level 4 First Stories Dragon Danger.mp4 42.93M
| | ├──Level 4 First Stories Missing.mp4 26.78M
| | ├──Level 4 First Stories The raft Race.mp4 30.00M
| | ├──Level 4 First Stories The Spaceship.mp4 34.59M
| | ├──Level 4 Phonics Quick!Quick.mp4 26.93M
| | ├──Level 4 Phonics The moon Jet.mp4 28.31M
| | ├──Level 4 Phonics The Red Coat.mp4 37.37M
| | └──Level 4 Phonics wet feet.mp4 32.88M
| ├──level 5
| | ├──Level 5 First Stories Hungry Floppy.mp4 40.36M
| | ├──Level 5 First Stories Husky Adventure.mp4 50.83M
| | ├──Level 5 First Stories Looking after Gran.mp4 47.80M
| | ├──Level 5 First Stories Trapped!.mp4 47.15M
| | ├──Level 5 Phonics Craig Saves the Day.mp4 32.24M
| | ├──Level 5 Phonics Dolphin Rescue.mp4 37.32M
| | ├──Level 5 Phonics Egg fried Rice.mp4 38.49M
| | └──Level 5 Phonics Seasick.mp4 32.06M
| └──level 6
| | ├──Level 6 First Stories Hairy-scary Monster.mp4 44.48M
| | ├──Level 6 First Stories Moutain Rescue.mp4 44.43M
| | ├──Level 6 First Stories The Lost Voice.mp4 52.16M
| | ├──Level 6 First Stories The Secret of the sands.mp4 54.17M
| | ├──Level 6 Phonics Gran's new Blue shoes（此节文件损坏，无法播放）.mp4 42.06M
| | ├──Level 6 Phonics Ice City.mp4 38.89M
| | ├──Level 6 Phonics Saving pudding wood.mp4 41.11M
| | └──Level 6 Phonics Uncle Max.mp4 49.57M
