Velocipede

(noun.) any of several early bicycles with pedals on the front wheel.

校对:凯尔西

• This crude affair consisted of a small velocipede upon which was mounted a crude coal-burning steam engine. 佚名. 神奇的知识之书.
• This name originated with the French, and several Frenchmen patented velocipedes from 1800 to 1821. 威廉·亨利·杜利特. 世纪发明.
• Nearly 5,000 patents have been granted on velocipedes and bicycles. Edward W. Byrn. 十九世纪发明进展.

校对:内尔