Many iPhone apps on the market are aimed directly at preschoolers, many of them labeled "educational, " such as Toddler Teasers: Shapes, which asks the child to tap a circle or square or triangle;
市场上的许多iPhone应用程序都是直接面向学前儿童的，许多程序都贴上了“教育”标签，例如“学步幼童趣味挑战题：形状”，这种程序让小孩点击圆圈、正方形或三角形；
Tap the square horizontally or vertically adjacent to the empty square to move the pieces till you get the original image.
点击空位四周的图块就可以将其移动到空位上，直至把整幅图片复原。
Tap the square horizontally or vertically adjacent to the empty square to move the pieces till you get the original image.
点击空位四周的图块就可以将其移动到空位上，直至把整幅图片复原。
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