zì xíng
voluntary
autonomous
by oneself
self-
zì xíng chē
bicycle
bike
CL:輛|辆[liang4]
huán fǎ zì xíng chē sài
Tour de France cycle race
zì xíng chē guǎn
cycling stadium
velodrome
zì xíng qí shì
to act as one thinks fit
to have one's own way
Lǎo shān Zì xíng chē guǎn
Laoshan Velodrome, a Beijing 2008 Olympics venue
Huán Fǎ Zì xíng chē sài
Tour de France cycle race