Earth Hour

基本解释

And in 2010, one billion people in 128 countries, which joined in the Earth Hour, demonstrated their support to change.
128个国家的10亿人通过加入2010年地球一小时活动证明他们对推动改变的支持。
At 8:30 local time, soon after this picture was taken, the district went dark in support of the world's third Earth Hour.
在当地时间的8点30分（即如下图所示），为支持第三个地球一小时活动日，整个街区变暗了。
Last year during Earth Hour … we were able to save enough energy to remove more than 124, 000 pounds of carbon dioxide from the atmosphere.
去年地球一小时过程中......我们可以可以节约足够多的能源来从大气层中去除124,000磅的二氧化碳。

At least nineteen of the fifty American states are planning to take part in the two thousand ten Earth Hour observance.
This will be the first Earth Hour for countries including Kuwait, Qatar,Kosovo,Madagascar,Nepal, Cambodia and Panama.
Will you be turning off your lights this Saturday night to observe Earth Hour?

As we all know today is when we are supposed to celebrate Earth Hour.
FORBES: Celebrate Earth Hour By Turning the Lights *On*