2012年12月英语六级冲刺听力练习：残留的光线 Afterglow
音频地址：音频下载Afterglow 夕照，晚霞
Here's an experiment you can try: look at something bright relative to its surroundings, such as a lamp or a sunny window, for ten seconds without blinking. Then shut your eyes and cover them over with your hands.
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