Nasa successfully smashes spacecraft into asteroid 11 million km from Earth.

美国国家航空航天局成功将航天器撞向地球 1100 万公里小行星。

That can be up to 80km.

坚冰覆盖区域可长达80公里。”

The animals have trekked about 500 km over the last month from their original habitat.

过去一个月，象群从原栖息地跋涉了约500公里。

The island is about 1,140 km from the southeastern state of Espirito Santo.

该东南部圣埃斯皮里图州约1140公里。

This costly and labour-intensive project has covered 2.4km of the coastline so far.

到目前为止，这个耗资巨大劳动密集型项目已经为岸线铺上了2.4公里长牡蛎壳屏障。

Ukrainian forces routed the Kremlin's troops and regained 3,000 sq km of territory.

乌克兰军队击溃了克里姆林宫军队，夺回了 3000 平方公里。

Its width varies from between 30 to 45 miles, that's 50 to 70 km.

它宽度从30到45英里不等，也就是50到70公里。

You'd be cheating because the answer is actually 191 km.

你肯定犯规了，因为答案是191千米。

In a single pinch of dirt, these hyphae, when lined up, can extend 11 km!

在一小撮里，这些菌丝如果排成一排能够延伸 11 公里。

A rocket needs to reach a velocity about 40,000km an hour to escape from Earth.

火箭需要达到每小时约四万公里逃逸速度来脱地球。

In just five seconds, it would have traveled 150 km (93 mi) .

仅仅五秒钟，它将运动 150km（93mi）。

It's about 12,700 km in diameter; about 7.7 million times larger than you.

它直径约为12700公里;大约比你大770万倍。

It is a mere 40km (25 miles) across.

它仅仅只有40公里（25英里）宽。

Now it's 380,000 km from Earth.

现在它地球有38万公里。

The hunt takes place in an area of the river about 160 km from Lake Michigan.

狩猎活动在密歇根湖约160公里河段进行。

The shuttles can go about 16 km with GPS unmanned navigation on an electric battery-powered motor.

班车在GPS无人导航系统引导下，以电池驱动马达为动力，时速可达约16公里。

Its' about 50km away from my home.

我家大约50公里。

The voyage covered nearly 60-thousand km.

“洋六号”此次航程近6万公里。

I guessed 15km. But it was just a guess.

我猜15千米。但它只是一个猜测。

The state has nearly 2,000 km of coastline, so the state is known as a surfer's paradise.

加州岸线近2千米长，所以加州有冲浪者天堂之称。