When did it become accepted wisdom that students should be able to name the 13th president of the United States but be utterly overwhelmed by a broken bike Chain?

从何时起我们开始接受学生应该能够说出美国第十三任总统是谁，但对自行车链条断了却迷。

Hey Jane. Is this your new bike?

嘿，简。这是你的新自行车吗？

Subjects have to pedal on the exercise bike and keep their heart rate up.

受试者必须踏健身单车并保持心率。

And it uses a bicycle drivetrain, very similar to what you have on your bike, to transfer power from these levers to the wheels.”

这种轮椅使用自行车传动系统，很像自行车，将量从控制杆传送到轮子。”

Yes. The man who crashed his stationary bike.

是的。曾撞烂过健身固定脚踏车的超低运动技能点。

Galloping fast on a galloping horse, that's faster than on my bike, of course.

骑快马奔腾，当然比我骑自行车快。

11. What is the man's concern about selling bikes abroad?

11。关于把自行车销往国外，这位男士的顾虑是什么？

An hour of cycling really intensely on exercise bikes to burn off about two doughnuts.

在健身脚踏车地踩一小时才能消耗掉大约两个甜甜圈的热量。

Ride indoors on a stationary bike or go outside and enjoy the scenery.

在室内踩健身脚踏车或骑脚踏车到室外去欣赏一下风景。

Most students come to school by bike and they like riding bikes.

大部分学生骑自行车到学校，他们喜欢骑自行车。

Do you ride a bike on Mondays?

你星期一骑自行车吗？

We'll replace the defectively bikes with new ones.

我们有毛病的自行车都换成新的。

But Uncle Steve taught me how to ride a bike!

但是Steve伯伯教我骑的单车！

My bike is nice. Mike's kite is high.

我的自行车很好看。麦克的风筝很高。

I'm going to invent a flying bike!

我打算发明一辆会飞的自行车！

And we borrowed a bike for you.

而且我们给你买了一辆自行车。

It comes from the idea of when you have a car tire or a bike tire and you pump it up with air, and of course the tire gets bigger.

它来源于这个情景——当你有一个汽车轮胎或自行车轮胎，你给它打气，当然轮胎就会变大。

You have an extra helmet on that bike, right?

你车还有一个头盔 是吧?

For example, she was over the moon with her new bike.

例如，她骑着她的新自行车，喜出望外。

When we drift off, the areas of our brain that control motor function are inactivated in favor of those that control our sleep cycles, which is why you can dream about riding your bike without actually moving your feet.

当我们昏昏欲睡时，我们大脑中控制运动功能的区域会没有活、那些控制我们睡眠周期的区域取而代之发挥作用。这就是为什么即使没有真的动你的退，你仍会梦到骑自行车。