Passengers have been stuck on planes for hours and inbound flights had been diverted.

乘客被困在飞机上长达数小时 入境航班均已。

And they would have to go round the universe not once, but twice.

而且必须宇宙两次，而不是一次。

So we get about 15,16 cycles a day.

所以我们概会十五或十六圈。

Like every orbit, the moon follows an elliptical path.

跟所有轨道一样，月亮的轨道也是椭圆形的。

Most of these satellites circle only a few hundred kilometres above the planet's solid surface.

部分卫星高离地球地表仅几百公里。

So does the moon really orbit the Earth?

是地球对月球的两倍。那月球真的会地球吗？

The International Space Station orbits the Earth every 90 minutes, traveling about 17,500 miles per hour.

国际空间站90分钟地球轨道一圈，小时约17500英里。

There's been an accident so we need to take the diversion

那里发生了交通事故，所以我们需要。

But it also kind of suggests that planets might revolve around the sun every which way.

但是它也暗示了星公转时可能以任何角太阳。

But as option B indicated, it does have to clear the neighborhood in its path of orbit.

但选项B中提到，它的轨道上必须没有阻碍。

Both of its passengers were killed when the car apparently failed to drive around a curve.

很显然，这辆车没能在弯道，使得两名乘客都丧生了。

Competitors in the virtual race will have to go around the length of the race track over 28 times.

参加虚拟比赛的选手必须在赛道上28圈以上。

Their only alternative is to divert around the southern tip of Africa, adding about a week to the journey.

这些船只唯一的选择是非洲南端，但这样会增加一周的程。

In his capsule, Friendship 7, John Glenn will attempt NASA's first orbital mission.

在自己的航舱友谊七号中，John Glenn 准备去实现 NASA 的第一次轨道任务。

Dmitry and Paolo and I are circling the Earth in our tiny spacecraft, approaching the space station carefully.

迪米崔、保罗和我 乘着小巧的太空舱地球，小心朝着太空站前进。

But three passes are needed to confirm a planet's existence, and Kepler 22b has now passed this test.

但是需要三圈后才能确定一颗星的存在。“开普勒22b”已经通过这项测试。

Because it's far out, man. Scientists estimate it takes the dwarf planet 248 years to orbit the sun.

因为它距离太远。科学家们估计这颗矮星需要248光年才能太阳轨道。

I go merrily round, day and night, in summer and winter the same, without asking his leave.

而我就在愉快地，无论春夏秋冬，都在夜以继日地工作，从来不需要得到太阳的允许。

In addition, Scott included another layer of signposts: pulsars in globular clusters orbiting the Milky Way.

此外，斯考特还查了另一层路标：银河系的球状星团里的脉冲星。

Today, we're going to learn about getting around.

今，我们将学习如何。