Tregear医生说：“女人应该走出家门感受阳光，在没有防晒霜的保护下作20分钟的锻炼，尝试着在预防皮肤癌和保护骨骼上保持平衡。”
Dr Tregear says women should try to strike a balance between avoiding skin cancer and protecting their bones, by going outside when it's sunny for 20 minutes without wearing sun cream.
在26日这一天，让我们为了保护地球和确保人类福祉而共同庆祝，用60分钟的黑暗帮助世界看到光明。
Tomorrow, let us join together to celebrate this Shared quest to protect the planet and ensure human well-being. Let us use 60 minutes of darkness to help the world see the light.
但一个视频片段非常难分辨是否受版权保护，尤其当一天24小时里的每一分钟都有视频上传到YouTube。
But it is extremely hard to tell if a video clip is copyrighted, particularly since 24 hours of video are uploaded to YouTube every minute.
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