yóu
yóu
gēn
gēn
pǎo
pǎo
bìng
bìng
pǎo
pǎo
xiàng
xiàng
bìng
bìng
páo
pǎo
líng
lǐng
páo
pǎo
zhuǎn
zhuǎn
biàn
biàn
1
transitioning from catching-up and being neck-and-neck
2
to being neck-and-neck and then over-taking