Calculating this angle would allow astronomers to measure what was then the ultimate goal: the distance of the Earth from the Sun.

计算这个角度可以让天文学家测量地球到太阳的距离，这是当时的终极目标。

youdao

Then Houston, the control centre on the earth, called up and told me to use the tape to tape the bottom of the handrail and pull it off the telescope.

然后休斯顿，地球上的控制中心，打电话给我，让我用胶带把扶手的底部粘上，然后把它从望远镜上拉下来。

youdao

He can dig a hole and hide in the ground, and then the earth can protect him.

他可以挖一个洞，藏在地里，然后大地可以保护他。

youdao

The short wave signals bounce off the ionosphere that surrounds the Earth,back to the ground and then back to the ionosphere.

VOA: special.2010.12.08

I'd like to get away from earth awhile, And then come back to it and begin over.

我真想暂时离开人世一会儿，然后再回来，重新干它一番，可是。

耶鲁公开课 - 现代诗歌课程节选

Then, the fact that the Earth is going around the Sun.

接着,还有地球绕着太阳转的这一个事实

耶鲁公开课 - 基础物理课程节选

Why then on Earth would it take a cloture vote to get additional lending to go to community banks in order to get it to small businesses to create jobs?

WHITEHOUSE: Press Briefing

Abrupt methane releases from frozen regions may have played a major role in two events, 55 and 251 million years ago, that extinguished much of the life then on Earth.

BBC: Climate 'tech fixes' urged for Arctic methane

Since then Railroad Earth had been a consistent draw at rock clubs, theaters, and bluegrass festivals, earning a devoted following of so-called hoboes who trailed the band from town to town and trade cassettes of their live shows.

NPR: Railroad Earth Jams Live on Two-CD 'Elko'