介绍自行车英语作文,要求:使用目的,外形,构造,使用中的常见问题,注意事 ...答:Bicycle-parts (1) body parts: including frame, front fork, handlebar, saddles and fork and pieces as well as the main body of the bicycle, is.(2) the transmission part: including pedal, crank, wheel, chain, axial and the flywheel, such as by human pedaled pedal, through the...