1. Many children are at the playground. They're riding bikes. They're jumping rope.
    许多孩子都在操场上，他们正在骑自行车，他们正在跳绳

2. I has motorcycle accident and in hospital for a month when I was 15 years old the doctor said after duplicate constructs you can walk again and run need 15 years. Skills were top hill on the time so my mind was very hard to said, when I was out of hospital I shouldering challenged whole life. I was concealing doctor to riding bikes be duplicate constructs by not conceded spirit, one year later I joined competition and get free style park 1st twice cross doctor's diagnosis proof leg is mine.
    15岁时，因飙车发生事故，住院住了一个月，右腿缝了72针，当时医生告诉我，至少十年才能正常走路，小跑步则要15年，在当时正处於技术巅峰，内心的难过是无法言喻，出院后背负著终生肢障的阴影及内心一股不服输的个性，瞒著医生偷偷练车当做是复健，隔了一年再复出连夺两届花式单车冠军，超越了医生的预言也证明了脚是自己的。

3. riding bikes

3. They were riding their bikes up and down the far bank of the river, taunting the water, obviously fascinated by its power and its draw.
    在远处的河堤上，他们正骑着自行车上上下下，对着河水叫骂，很明显地沉迷于河水的力量和流势。

4. riding bikes的近义词

4. X V-cam with remote Lenses were installed on each of the instructor`s bikes with some having Cams both front and rear, will provide real life footage of each of the riders either in front of at the rear of the instructors so that the instructors can give each riders comments on their riding styles and racing lines.
    6x微焦摄像机被安装在每台教练车上，并在车的前方和后方均放置了摄像头，这样可以真实记录在教练前方和后方的各车手的驾驶情况，可以让教练在练习结束后针对每一位车手的驾驶风格和驾驶路线给出不同的建议。

5. Let's do something fun outside, like taking a walk, or riding bikes.
    我们到外头轻松一下吧，像散个步、骑脚踏车都好。

6. riding bikes

6. But, these bikes are not for light riding.
    但是，这些自行车都骑不轻。

7. And tell you the principle concerning bike, we can learn how and when it was invented and its basic structure as well from the passage. we got the history of bike and when it become popular, these are really interesting. although we usually ride bike around, we're not familiar with the history and the basic structure of it. after learning the unit, it give me a fresh knowledge of bike, and also tell us commonsensibles like how to forbit downdipping while riding in muddinesses and so on. it's a great help for us. because why don't learn more to keep our bikes more safe?
    而且从文章告诉我们自行车是怎么样发明的？什么时候发明的？它的构造又是怎么样的？让我们了解了自行车的历史。以及它是什么时候开始流行的。这些都相当有意思。虽然平时我们经常骑脚踏车，可对他的历史来源和它的简单构造也不是很清楚，但学了这单元之后，使我对脚踏车又有了一个新的认识。而且它还告诉我们，当我们骑在泥泞的地面时，怎么样避免下沉？等等一些常识性的问题，可以让我们在现实生活中运用到，这是起着很大作用的，因为多点了解就能让自己的行车得到更好的安全保证。何乐而不为呢？

8. Most downhill riding requires high-speed movement for which these bikes are provided with one chain ring, a large bush guard and a chain guide.
    最速降骑马需要高速运动，这些自行车是提供一个链环，大型布什警卫和连锁指南。

9. After three plus years here, I am still shocked by how people misunderstand the country, with many Americans still seeming to hold one of two diametrically opposed stereotypes: China is a raging dragon about to gobble us up; China is a land of peasants riding bikes in Mao jackets.
    我在这里呆了三年多，经常会碰到外国人误解中国的情况，很多美国人现在依然存在两种根深蒂固的偏见：一种是中国是头暴怒的龙，会把大家都吃掉；另一种是中国到处都是农民，穿着毛泽东时代的衣服，骑着自行车。

10. riding bikes的近义词

10. Riders in Crested Butte, Colorado, and Cupertino, California, tinkered with their bikes and adapted them to the rigors of off-road riding.
    骑士在克雷斯特德比特，科罗拉多州和加州Cupertino，修饰，他们的自行车和调整它们的严酷的越野骑马。

11. Ann's husband Maarten is Dutch, I think Dutch like riding their bikes the most.
      安的丈夫马腾是荷兰人，我觉得他们喜欢骑自行车最荷兰人。

12. 好好学单词·英语单词大全

12. Riding bikes in the field after school, these are the children of Bumi Moro orphanage.
      放学了，骑著脚踏车奔驰在田野上，他们是来自布米摩若孤儿院的孩子。

13. Regular bikes compared to mountain bikes may have a smoother ride and are slower and heavier but are great for riding on the street.
      定期自行车山地自行车相比，可能有一个平稳的行驶和慢重却是骑在大街上的伟大。

14. We all know downhill and freeride bikes look awesome, but if you`re going to be riding cross...
      我们都知道速降和freeride自行车外观可怕，但如果你要骑跨。。。

15. The cross country bike is completely different in many ways from other types of mountain riding bikes.
      在越野车是完全不同的在许多方面与其他类型的山地骑自行车。

16. Since Atami is built up on the cliff, so the route is not quite suitable for riding fixed gear, so after some filming and shooting in the morning, we had to jump on the van which took us to the nearest point that we can ride to Tokyo. So we stopped by Yokohama, and built up our bikes, and started riding to Tokyo from there. A long the way, it was all about going up and down, up and down, it was quite tiring, but we still made it at the end!
      从atami出来之后山路比较崎岖根本无法骑行，所以我们先是到了热海的沙滩进行简单的拍摄之后便沿着高速公路开始一天的旅程，在快到yokohama的时候我们从高速下来便开始了正式的骑行，一路上都是上坡下坡的路程，虽然有些疲惫但我们还是骑了下来。

17. Floating brake arms in simple terms that I can understand: This uncouples the braking from the suspension, in many bikes this locks the suspension out and it feels like your riding down steps.
      浮动制动武器简单来说，我能理解：这uncouples制动的悬挂系统，这在许多自行车锁暂停和感觉就像你骑下跌步骤。

18. riding bikes的反义词

18. Tire pressure is a very important facet of riding any kind of bike, including mountain bikes.
      胎压是一个非常重要的方面，任何形式的骑自行车，包括山地自行车。

19. Millions of people get a great deal of enjoyment from riding mountain bikes.
      数以百万计的人获得了大量的享受从骑山地自行车。

20. We worked with Cane Creek to create a custom SuperOversize version for our bikes. Comes with 3 different sets of elastomers to tune the seat post to rider weight and riding style.
      我们和Can Creek合作为我们的单车创造SuperOversize版本；配有三个不同的人塑胶部件，可以根据车手的体重和驾驶方法来调整座管。