She says that Earth Day is still very much about activism and fighting for the environment on a local level.

VOA: special.2010.04.21

Now, as I said, this is Socrates' last day on earth and you'd expect him to be pretty bummed.

我已经说过了,这是苏格拉底在人世的最后一天,你们肯定以为他很难过

耶鲁公开课 - 死亡课程节选

Can you tell us in detail what people do on Earth Day?

能告诉我人们在地球日会具体做些什么吗？

关于世界地球日 - SpeakingMax英语口语达人

The hard work of this grassroots effort resulted in the first Earth Day on April twenty-second, nineteen seventy.

VOA: special.2010.04.21

This image of the afterlife is founded on the orthodox figure for eternity. The body stays to the earth while the soul, like the day-star, rises to the sky.

关于来生的这幅画面是建立在正统基督教,对永生的信仰上的，肉体归于泥土,灵魂却会像启明星一样升上天空。

耶鲁公开课 - 弥尔顿课程节选

On Earth Day, the artist and building designer Maya Lin will launch a Web site about the Earth's endangered plants and animals.

VOA: special.2010.04.21

"And half of the people on planet Earth every day use wood or biomass for cooking.

VOA: special.2010.02.01

On April twenty-second, nineteen seventy, environmental activists organized the first ever Earth Day.

VOA: special.2010.01.17

Earth Day Network works on environmental programs around the world.

VOA: special.2010.04.21

And you get presents for eight days because -- I mean seven days, because God made the, created the earth in seven days and on the seventh day he rested."

VOA: special.2009.12.21

And even though historically there's no indication that Jesus Christ was born in December, that's just the day that has traditionally been used to celebrate the birth of the Son of God on Earth.

VOA: special.2009.12.21

For the past week people gathered on the National Mall in Washington,DC to take part in Earth Day activities.

VOA: standard.2010.04.25

On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

VOA: standard.2010.04.21