gǎi​dào

to change route

改道 gǎi//dào
to change route verb + noun
to change course or route; to divert, such as a road, vehicle, or watercourse

Several houses in the village were carried away when the swollen river suddenly changed its course.

to change system
(literary) to change a system, regime, or set of measures

Frequency

Movie subtitles
0.600 per million appears in 0% of films
Written text
1.20 per million

Sources