If it is a bicycle, you should call your parents before you let the rider go.
如果是一辆自行车的话，你应该在骑手离开之前打电话给你的父母。
They can also learn geometry by assembling a bicycle.
他们还可以通过组装自行车来学习几何。
A Nepalese child rides in the basket of a bicycle in Kathmandu on Feb. 22.
2月22日，在加德满都，一个尼泊尔小孩站在自行车的货筐中。
You can rent a bicycle, visit the Van Gogh or Anne Frank museum, or take a water taxi.
你可以租上一辆自行车或乘坐水上的士去参观梵高或安妮·弗兰克博物馆。
It's an air cleaning machine connected to a bicycle and is part of the Smog Free Project.
这是一台连接到自行车上的空气净化机，是雾霾净化项目的一部分。
It will look like a bicycle wheel and have a very modern hotel for 100 people and a park.
它看起来将像一个自行车轮子，有一个能容纳100人的现代化酒店和一个公园。
A bicycle lane would encourage them to use bicycles to commute, and so would reduce rush-hour traffic rather than fostering an increase.
一条自行车道会鼓励他们骑自行车上下班，这样会减少高峰时间的交通，而不是促进增长交通量。
It should be noted, however, that a donkey, which at 20,000 Tanzanian shillings costs less than a bicycle, is still an investment equal to an average household's income over half a year.
然而，应该指出的是，一头驴的费用为2万坦桑尼亚先令，比一辆自行车还便宜，但它仍然是一项投资，相当于一个普通家庭半年以上的收入。
According to a German professor, the soreness comes from straining your muscles in an uncommon way. For example, jumping on a bicycle for a ride, because you haven't ridden in a long time.
一个德国教授认为，肌肉酸痛是因为肌肉拉伸的方式与平常有所不同，例如，长时间没有骑自行车之后再骑车兜风就会产生肌肉酸痛。
A bicycle is often more convenient than a car in towns.
在城镇骑自行车常常比开车更方便。
The helmets are designed to withstand impacts equivalent to a fall from a bicycle.
头盔设计成能承受相当于从自行车上摔下来的力度。
Statistics show that far more people are able to ride a bicycle than can drive a car.
统计资料表明，会骑自行车的人比会开汽车的人多得多。
Max asked Sam to ride a bicycle to pull the board with Sophia and her harp on it.
马克斯让萨姆骑自行车拉着木板，上面载着索菲娅和她的竖琴。
Triathlon is a race in which each person swims, rides a bicycle and runs over very long distances.
铁人三项是一项比赛，每位选手需要完成长距离的游泳、骑自行车和跑步项目。
It was thought that only men could run machines, and that women wouldn't be able to control a bicycle.
过去，人们认为，只有男人才能运作机器，而女人无法驾驭自行车。
She knows how to ride a bicycle.
她知道如何骑自行车。
Kish is good at riding a bicycle in traffic.
基什擅长在交通中骑自行车。
Steven Kayne, who has just taken over and established a bicycle shop.
刚刚接手生意的史蒂文·凯恩开了一家自行车店。
If you're planning on following one of the easier forest walks, you might like to hire a bicycle.
如果你打算走一条比较容易的森林步道，你也许要租辆自行车。
Why ride hundreds of miles on a bicycle when you can drive in a car, or better yet fly in a plane?
既然你可以驾车，或者更好一点，坐飞机，为什么还要骑几百英里的自行车？
That is to say, he kept on throwing and catching three balls while he was swimming, riding a bicycle and running.
也就是说，他在游泳、骑自行车、跑步的时候，不停地扔、接三个球。
According to a German professor, the soreness comes from straining your muscles in an uncommon way, for example, jumping on a bicycle for a ride, because you haven't ridden in a long time.
据一个德国教授说，疼痛来自以不平常的方式拉伸你的肌肉，例如，骑上自行车兜风会疼痛，因为你已经很长时间没骑车了。
They're pumping water by riding on a bicycle.
他们用骑自行车的方式泵水。
telling me how the head is becoming a bicycle
告诉我这脑袋如何变为一辆自行车
It felt more like riding a bicycle than walking.
它更像骑自行车，而不像步行。
A bicycle with 12 rockets mounted on the back wheel.
后轮上绑了12枚小火箭的自行车。
Few businesses own machinery, or even a bicycle.
经营者很少拥有自己的机器，甚至连辆自行车都没有。
Mr. Holland had not ridden a bicycle for many years.
霍兰先生许多年不骑车了。
Faith is in some ways like learning to ride a bicycle.
某种程度上，信仰就像学骑自行车。
Faith is in some ways like learning to ride a bicycle.
某种程度上，信仰就像学骑自行车。
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