磕 ⇒
磕 kē/kè, to tap/to knock (against sth hard)/to knock (mud from boots, ashes from a pipe e...
磕磕绊绊 kēkebànbàn, [磕磕絆絆], bumpy (of a road)/limping (of a person)
磕头 kētóu, [磕頭], to kowtow (traditional greeting, esp. to a superior, involving kneeling and pres...
磕磕碰碰 磕碰 kēpèng, to knock against/to bump into/to have a disagreement/to clash