青天霹雳

qīng tiān pī lì

lit. thunderclap from a clear sky (idiom)

fig. a bolt from the blue

青

qīng

abbr. for 青海[Qing1 hai3], Qinghai Province

天

tiān

day

霹

pī

used in 霹靂|霹雳[pi1 li4] and 霹雷[pi1 lei2]

雳

lì

used in 霹靂|霹雳[pi1 li4]