10秒內答出來的話!你是天才!!!
Soc nhi - YouTube從前有一隻蝸牛,它掉落一個10米深的古井白天蝸牛可以向上爬3米,但晚上會下滑2米問:這隻蝸牛需要多少天才能爬上這個古井? 答案↓↓↓↓↓↓↓↓↓↓↓↓↓↓&daSoc nhi baby oi ngon qua Subscribe Subscribed Unsubscribe 13 Subscription preferences Loading... Loading... Working... Add to Want to watch this again later? Sign in to add this video to a playlist. Sign in Share More Report Need to Sign in 184,276 11 ......
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