After a week at sea, it was good to feel the earth beneath our feet again.

出海一周后，重新踏上陆地感到很愉快。

《牛津词典》

Our four-week Earth Camp is a fun and educational summer camp for children aged 6 to 15.

我们的地球夏令营为期四周，是一个有趣且有教育意义的夏令营，适合6至15岁儿童参加。

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Earth-bagging is the main focus this week.

本周主要工作是垒土建房。

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Some cities and communities will hold Earth Day activities and celebrations for an entire week, not just on April twenty-second.

VOA: special.2010.04.21

This week, we will tell about a study linking activity on the sun to changes in Earth's climate.

VOA: special.2009.09.29

This week on our program: A competition to find a spokesmodel for Mother Earth .

VOA: special.2009.11.06

One of the major themes of Earth Week this year was lighting, as green lighting innovations ranging from the useful to the absurd made it onto Inhabitat's radar screen.

ENGADGET: Inhabitat's Week in Green: ten earth activities, transnatural stools and wood ash bike frames

In honor of Earth Week, this week we took a moment to think about the origins of this now-global event, exploring why we need Earth Day and how our society can possibly tackle the 7 biggest threats to our environment.

ENGADGET: Inhabitat's Week in Green: ten earth activities, transnatural stools and wood ash bike frames

Being Earth Week and all, it's not too surprising to hear of San Diegans stretching their mental might and figuring out an effective way to convert carbon dioxide to fuel, but according to the University of California, San Diego, that's precisely what they've done.

ENGADGET: San Diegans convert carbon dioxide to fuel via solar energy