biking
n. 自行车，骑单车；踏单车
v. 骑自行车（bike 的现在分词形式）
例句
Camping, biking, hiking and swimming are all available for the holidaymaker.
露营、骑车、远足和游泳都是可供度假者选择的。
《柯林斯英汉双解大词典》
Yeah, a couple of friends of mine who love biking as much as I do.
是的，我有几个和我一样喜欢骑自行车的朋友。
The activities on offer include sailing and mountain biking.
提供的活动项目有帆船运动和山地骑车。
《牛津词典》
