事到臨頭

when things come to a head (idiom)

matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2]

to (a place) / until (a time) / up to / to go / to arrive / (verb complement denoting completion or result of an action)

to reach; to arrive / to leave for; to go to / to (a place); until (a time); up to (a point) / (verb complement indicating arriving at a place or reaching a point) / considerate; thoughtful; thorough

to face / to overlook / to arrive / to be (just) about to / just before

to befall / to be imminent

head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:個|个[ge4]

suffix for nouns