Why? Why have we made so little progress?

为什么？为什么我们止步不前？

Decide to settle when growth is guaranteed.

在一时的成功面前止步。

Neither the United States nor China is content to rest on our achievements.

美国和中国都不想满足于已取得的成就，止步不前。

A veteran of four space flights, he's performed 10 spacewalks totaling nearly 68 hours outside a space shuttle or station more than any other NASA astronaut, and he's not done yet.

作为参加过4次太空飞行的老手，他执行过10次太空行走，身处航天飞机或空间站外部的总时长比NASA其他宇航员都多，差不多有68小时。但是，他显然并不会止步于此。

Travel times have fallen, the country's economy has boomed, cities have exploded - and the rest of the world has been left wondering how they'll ever come close to building at such an insatiable pace.

旅途时间缩短，国家经济繁荣，城市蓬勃发展——而上其它地方却还在苦苦思索，他们如何才能追上这种永不止步的建设速度。

However, nothing stands still in this world.

然而，在这上没有什么是止步不前的。

If you're not advancing your learning after you leave college, they're catching up.

如果你毕业后止步不前，AI 很快就会超越你。

Upon reaching the coast, the lemmings do not stop but swim by the thousands into the surf.

到达海岸后，旅鼠们并不会就此止步，而是数千只鼠一起游进海浪里。

However, they want more. Natalie and Oscar also want to compete against able–bodied sports people!

然而他们不想止步于此。娜塔莉和奥斯卡也想和身体健全的运动员竞争！

But, of course, the Byzantine Empire didn't just rest on the laurels of Ancient Rome.

但当然，拜占庭帝国没有在罗马帝国的桂冠下止步不前。

I hope that you enjoyed that lesson and you don't have to stop now!

我希望你们喜欢本节课，而且你们不应该止步于此！

That was enough to stop him, and he went downstairs to his lonely bed.

这就足以计他止步了，他到楼下自己那张孤独的床上去了。

Under the lemon law, you will get your money back. But don't stop there.

依据《次品汽车买主保护法》，你可以拿回你的钱。但不要就此止步。

There have been challenges along the way, but that didn't stop Rogers.

她一路走来面临诸多挑战，但从未止步。

But that is about as far as environment goes.

环境因素的影响就止步于这里了。

But Kepler went even further than just pontificating about the sun.

但开普勒并没有止步于对太阳的推测。

It's led you no further than where you started.

它只会让你止步不前。

But the man did not stop, and he was soon lost in the crowds.

可是那人没有止步，并迅速地消失在人群中。

" It's important to know that my work shouldn't stop here, " Johnson said.

“重要的是要知道，我的工作不应该止步于此”。

But it's hard to believe that the streamers will stop there.

但很难相信流媒体公司会止步于此。