(noun.) a vehicle with three wheels that is moved by foot pedals.
格雷格整理
双语例句
In the last decade many applications of the explosive gas engine to road carriages and tricycles have been made, especially in France. Edward W. Byrn.十九世纪发明进展.
Tricycles having three wheels, propelled by the hands and steered with the feet, were also invented in the early part of the century. 威廉·亨利·杜利特.世纪发明.