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。

So we get about 15,16 cycles a day.

所以我们天大概会十五或十六圈。

Like every orbit, the moon follows an elliptical path.

跟所有轨道一样，月亮轨道也是椭圆形。

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

大部分卫星地球地表仅几百公里。

So does the moon really orbit the Earth?

是地球对月球两倍。那月球真会地球吗？

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，小时大约17500英里。

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.

这些船只唯一选择是非洲南端，但这样会增加一周程。

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：银河系球状星团里脉冲星。

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

今天，我们将学习如何。

So, there's less turbulence and fewer storms to navigate around.

因此，需要湍流和风暴更少。

They return at evening, snarling like dogs, and prowl about the city.

他们晚上转回，叫号如狗，围城。

That's the circumambulation. Now, remember that for a sec, because we'll go back to it.

这就是。现在，记住这一点，因为我们会回到它。