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Jyutping caang3 coeng4 min2
Pinyin chēng chǎng miàn

Definitions (粵典–words.hk)
  1. 動詞
    (​重要​人士​)​出席​一場​活動​,​令活動​排場​更​為​可觀
    (of important people) to grace an occasion by making an appearance
    • 葵涌KCC開幕揾謝婷婷撐場。
      葵涌KCC开幕揾谢婷婷撑场。
      kwai4 cung1 kei1 si1 si1 hoi1 mok6 wan2 ze6 ting4 ting2 caang1 coeng4.
      Kowloon Commerce Centre invited Jennifer Tse to make an appearance in its grand opening.
  2. 動詞
    (​一般​人​)​為​某​活動​,​特意​打扮​裝身​或​佈​置​,​令​自己​睇​落​更加​高檔​、​疊水​或​勁
    (of ordinary people) to keep up appearances; to dress up or use accessories to make one look classier or richer, to increase style or draw attention.
    • 去舞會,起碼都戴返條鑽石鍊撐吓場面啦!
      去舞会,起码都戴返条钻石炼撑吓场面啦!
      heoi3 mou5 wui2, hei2 maa5 dou1 daai3 faan1 tiu4 zyun3 sek6 lin2 caang1 haa5 coeng4 min2 laa1!
      You should at least wear a diamond necklace to a ball to keep up appearances!
  3. 參看
    撐場

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Jyutping caang1 coeng4 min6
Pinyin chēng chǎng miàn

Definitions (CC-CEDICT)
  1. to keep up appearances
  2. to put up a front
Definitions (Wiktionary)
  1. verb, colloquial
    to keep up appearances
    (syn.) 撐門面, 绷面皮, 撑门面, 繃面皮