In case of an accident, bicycle riders should know how to give first aid.

万一发生事故，自行车骑行者应该知道怎样进行急救。

Bicycle riders must pay attention to the traffic around them and know traffic signals.

自行车骑行者必须注意周围的交通状况，了解交通信号。

This means electric bicycle riders in China will need a driver's license next year.

这意味着明年电动自行车车主可能需要考取驾照才能上路。您觉得此举有必要吗？

During the rush hours, particularly in big cities, you can often see a sea of bicycle riders in the streets.

在交通高峰期，特别是在大城市，你会看到街道上一片自行车的海洋。

They've just announced the African bicycle Design Contest with the aim of producing a bicycle that is well-suited to the the needs of future bicycle riders in Africa.

他们举办了一场非洲自行车设计竞赛，力求制造出贴合非洲人民日常便利的自行车。

Bicycle riding can make the riders' hearts and lungs strong.

骑自行车可以让骑行者的心脏和肺部强壮。

Even a small misunderstanding between the riders over the direction in which they want to go can cause the bicycle to wobble worryingly or spin out of control.

两个骑车的人对他们想去的方向上即使有一点点误解就能导致自行车剧烈晃动或失去控制。

Major Chinese cities have extensive bicycle lanes, which means riders can avoid the worst of rush-hour congestion.

主要的中国城市都有适于自行车的众多街道，这可使骑自行车的人避开交通最拥挤的路段。

Electricity-driven folding bikes have also been launched by some manufacturers and if you are one of those reluctant bicycle-riders, you can simply whiz around on them.

电力驱动的折叠自行车也有一些厂商推出了，如果你是一个对那些不愿自行车车手，你可以简单地呼啸他们周围。

As with all bicycle devices, the OHM is subject of the scrutiny of the riders who have been victim of bike theft;

如同所有的自行车设备，欧姆是主体的监督车手谁已受害者自行车盗窃；

The small boiler was mounted between the riders legs on a bicycle-like frame.

的小锅炉展开骑手之间的腿骑自行车样时限。