一陣青一陣白 [－阵－－阵－]

Jyutping jat1 zan6 cing1 jat1 zan6 baak6
Pinyin yī zhèn qīng yī zhèn bái

Definitions (Wiktionary)
  1. phrase, idiomatic
    describes the change someone's facial expression when they become surprised or angry