Life on Earth will become unsustainable unless population growth is held in check.

地球上的生命将无法延续，除非人口增长得到控制。

《柯林斯英汉双解大词典》

Let me just check — how many of you know the evidence for Galileo to say that the Earth was going around the sun?

我仅做个抽查——你们中有多少人知道伽利略说地球绕着太阳转的证据？

youdao

Developing a consistent MEM (Mechanical Earth model), the team can anticipate potential trouble and check incoming data for consistency with the model.

开发一种可靠的MEM(机械地球模型)，作业队可以预测潜在故障，并检查输入数据与模型的一致性。

youdao

If your dream is to conduct scientific experiments outside of the gravitational pull of Earth, check out the JPL site.

CNN: The Internet: the final frontier for space watchers

To check the broadcast time of "Earth Reporters" in your country or region please see the BBC World News schedule.

UNESCO: MEDIA SERVICES

For a hilarious riff on the advantages of attractiveness (and who on earth gets to be the omnipotent judge), check out this clip from The Daily Show with John Stewart.

FORBES: Can Ugly People Have Presence?