铁轨上这张专辑已经组成，并专门制作坐在后面图片和对话，以加强情绪和内容。
The tracks on this album have been specially composed and crafted to sit behind picture and dialogue to enhance mood and content.
你的任务是点击你觉得有图片在后面的幕布。
Your task is to click on the curtain that you feel has the picture behind it.
其中一幅后面还有一幅图片；另一幅后面是一面空白墙。
One of them has a picture behind it; the other has a blank wall behind it.
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