或许你长得人高马大，而你的朋友却是个小不点儿。可能你的脸很圆，脖子很短，而你的朋友是方脸，长脖子。也许你戴眼镜，也许你要坐在轮椅上才能行动。这本“乐乐趣”翻翻书告诉大家：每个人千差万别，但我们的身体构造都完全一样。书内附有一幅可悬挂的人体骨架图，让你对人体结构一目了然。Perhaps you grow big burly, and your friend is a little man. You may face is round, the neck is very short, and your friend is a square face, long neck. Maybe you wear glasses, maybe you can move on to a wheelchair. This "fun music" looking through the book to tell you: everyone vastly different, but our bodies are constructed exactly the same. There is a book containing a human skeleton diagram can be hung, let your body structure at a glance.