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Jyutping soeng1 cing4 zing3
Pinyin shuāng chéng zhèng

Definitions (粵典–words.hk)
  1. 名詞、香港
    往來​港澳​通行​證​嘅​俗​稱​,​中國​公民​因​私事​短​暫離​開內​地​前往​香港​、​澳​門​嘅​證​件
    Exit-Entry Permit for Traveling to and from Hong Kong and Macao, commonly known as "Two-Way Permit"
  2. 參看
    雙程證