一次生，两次熟
yī​cì​shēng​liǎng​cì​shú

unfamiliar at first, familiar at second; an acquired taste

  1. 一次 yī​cì numeral
    once
    one time; for the first time
  2. 生 shēng nounadjective
    unfamiliar
    unfamiliar; strange; unacquainted
  3. ， liǎng
    non-Chinese
  4. 两 兩 liǎng numeral
    two
    two; used before most measure words, with the number ten, or with large units like thousand or ten thousand; also used for things that come in pairs
  5. 次 cì measure word
    time
    unit used to count the number of times an event or action occurs; occurrence
  6. 熟 shú adjective
    familiar
    familiar; well-acquainted; well-known through frequent contact