Riding a bike is great exercise.

骑自行车是很好的锻炼。

Look at me. I'm riding a bike!

看我！我正在骑脚踏车耶！

Riding a bike with only one wheel is a balancing act—that's why unicycles are used in the circus.

骑着只有一个轮子的自行车是一种平衡表演——这就是为什么独轮车被用于马戏团的原因。

Fred is riding a bike.

弗雷德在骑车。

He is riding a bike.

他正在骑自行车。

He's riding a bike.

他在骑自行车。

What is it like riding a bike using sonar?

使用声纳骑自行车是什么感觉？

Riding a bike is a great example.

骑自行车就是一个很好的例子。

They're riding a bike.

他们正在骑自行车。

I like riding a bike in the gentle breeze.

我喜欢在柔柔的微风里骑自行车。

Mr Green prefers walking to riding a bike.

格林先生喜欢步行而不愿骑车。

Look! A man is riding a bike the wrong way.

看！一个人正在非自行车道上骑车。

She hurt herself while she was riding a bike.

她在骑自行车时伤了自己。

I learned in college. It's like riding a bike, right?

我想我会，我在大学的时候学过，就像骑自行车一样，对吗？

I remember with particular amusement my first attempt at riding a bike.

回忆自己第一次试骑自行车的情景，我觉得特别好笑。

Therefore, although it has some disadvantages, I like riding a bike best.

因此，虽然有一些缺点，我喜欢骑自行车最好。

He had spent nearly a week riding a bike slowly round the long coastline.

一个星期以来他一直骑着一辆自行车，沿海岸线缓缓而行。

Today my friend possesses a BMW but I still like riding a bike, I am happy!

今天友人驾宝马了，我依旧爱骑自行车，快乐！

Pointing at a man riding a bike on the street, Mother said:"He must be madman.

妈妈指着街上一位骑自行车的男子说：“他肯定是个疯子。

Pointing at a man riding a bike on the street, Mother said: "he must be madman."

妈妈指着街上一位骑自行车的男子说：“他肯定是个疯子。”

Soldier Z - 'I killed a Frenchman from behind with a shot. He was riding a bike.'

士兵Z说：“一个法国人当时正在骑一辆自行车，我在后面开枪，打死了他。”

Riding a bike can not only make me keep health but also help reduce air pollution.

骑自行车不仅能使我保持健康，而且有助于减少空气污染。

Unspeakable, riding a bike through the alley has become a new fashion on the beach.

不知觉间，骑自行车穿越弄堂成了上海滩的一种新时尚。

The other one is still a lying position. Then pretend you are riding a bike for 4 or 5 minutes.

另外一个运动也是平躺着，抬起脚做骑自行车动作4到5分钟。

For people like Zhao, riding a bike back then was anything but a showcase of a person's wealth.

像赵慧珍这样的人，在那个年代骑自行车绝不是在炫富。

It might feel awkward at first but then, you'll fall right back into it just like riding a bike.

也许一开始你会觉得不适应，但是不久你就会重新找回感觉，就像再次骑上自行车一样。

As I mentioned in the bike riding example, there are a lot of subtle things you would miss if you simply read about riding a bike.

正如我在骑自行车的例子中提到的，如果你只是简单地读关于骑自行车方面的书，一此微妙技巧方面的知识是体会不到的。

Whether it's riding a bike or making friends, mastering new skills takes time and multiple failed attempts before a child meets with success.

不论是骑自行车还是交结朋友，掌握新的技能都需要花费时间，多次无果的努力，唯有如此，孩子才能与成功相遇。