ㄅㄧˋㄏㄞˇhǎiㄑㄧㄥqīngㄊㄧㄢtiān

  1. 形容天空碧海廣闊·李商隱常娥常娥靈藥碧海青天夜夜。」·大典青衫記·二八》:碧海青天無限等閒拭淚琵琶。」

green sea, blue sky (idiom)​; sea and sky merge in one shade, loneliness of faithful widow