岔开

岔开	chà kāi	to diverge / to branch off the road / to change (the subject)
岔	chà	fork in road / bifurcation / branch in road, river, mountain range etc / to branch off / to turn off / to diverge / to stray (from the path) / to change the subject / to interrupt / to stagger (times)
开	kāi	to open (transitive or intransitive) / (of ships, vehicles, troops etc) to start / to turn on; to put in operation; to operate; to run / to boil / to write out (a prescription, check, invoice etc) / (directional complement) away; off / carat (gold) / abbr. for Kelvin, 开尔文 / abbr. for 开本, book format