(noun.) riding a motorcycle; 'motorcycling is a dangerous sport'.
达斯汀录入
双语例句
Improved clutches, gear ratios which permit varying speeds, double-braking systems and electric lights are present-day refinements which add zest to the sport of motorcycling. 佚名.神奇的知识之书.
In the early days of motorcycling, belt drive was rather generally used, but the heavy duty required soon brought about the change to present usage. 佚名.神奇的知识之书.