这就是由世界自然基金会赞助的第五届国际智能器械大赛。

It's the fifth International Smart Gear Competition sponsored by the World Wildlife Fund.

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由世界自然基金会(WWF)发起的“地球一小时”活动，超过2800个城市的10亿人同步做同一件事，就是熄灯一小时。

By the world wide fund for nature (WWF) launched the "earth hour" activities, more than 2800 cities 10 million people synchronous do the same thing, which turn out the lights for one hour.

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该活动由环保组织世界自然基金会组织，该组织也被称为世界野生动物基金会。

The observance is organized by a conservation group, the World Wide Fund for Nature, also known as the World Wildlife Fund.

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