突如其来

突如其来	tū rú qí lái	to arise abruptly / to arrive suddenly / happening suddenly
突	tū	to dash / to move forward quickly / to bulge / to protrude / to break through / to rush out / sudden / Taiwan pr. [tu2]
如	rú	as / as if / such as
其	qí	his / her / its / their / that / such / it (refers to sth preceding it)
来	lái	to come / (used as a substitute for a more specific verb) / hither (directional complement for motion toward the speaker, as in 回来) / ever since (as in 自古以来) / for the past (amount of time) / (prefix) the coming ...; the next ... (as in 来世) / (between two verbs) in order to / (after a round number) approximately / (used after 得 to indicate possibility, as in 谈得来, or after 不 to indicate impossibility, as in 吃不来)