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Jyutping jan4 dei6 sang1 so1
Pinyin rén dì shēng shū

Definitions (CC-CANTO)
  1. describes the situation where a person is unfamiliar with a new place
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be unfamiliar with the place and the people; to be a stranger in a strange place
    (syn.) 人生路不熟, 人头生, 人生地不熟, 人頭生
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)