The UV index is not the warm sensation of sunlight on bare skin

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The warmth of sunlight is not a reliable indicator of how quickly you will sunburn in a given situation. On one hand, you can still get sunburned on a cooler...
摘要按规则整理自下方来源原文

The warmth of sunlight is not a reliable indicator of how quickly you will sunburn in a given situation. On one hand, you can still get sunburned on a cooler...
摘要按规则整理自下方来源原文