节目(10)
切换顺序- The Internet4302:42
- My Feelings about Science6001:23
- In some countries4701:16
- A Lively City6602:34
- The Maglev the FastestTrain in the World14001:25
- My First Ride on a Train9603:07
- Different Countries，Different Schools4701:39
- My New Teachers5703:07
- A Letter from a Senior High Student12501:16
- My First Day at Senior High31102:44
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