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Jyutping gwong1 waat6
Pinyin guāng hua

Definitions (Wiktionary)
  1. adj, of a function
    smooth (having derivatives of all finite orders at all points within the function’s domain)
  2. adj
    smooth; glossy; sleek
    (syn.) 滑溜溜, 平滑, 光溜, 溜, 滑

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Jyutping gwong1 waat6
Pinyin guāng huá

Definitions (CC-CEDICT)
  1. glossy; sleek; smooth
Definitions (粵典–words.hk)
  1. 形容詞
    形容​物​質​嘅​表面​冇​明顯​凹凸​,​觸感​好​順暢​,​唔​粗糙
    smooth and glossy
    • 做得家務少,隻手啲皮膚咪咁光滑囉。
      做得家务少,只手啲皮肤咪咁光滑啰。
      zou6 dak1 gaa1 mou6 siu2, zek3 sau2 di1 pei4 fu1 mai6 gam3 gwong1 waat6 lo1.
      He seldom does housework, so he has soft hands.
Definitions (Wiktionary)
  1. adj, of a function
    smooth (having derivatives of all finite orders at all points within the function’s domain)
  2. adj
    smooth; glossy; sleek
    (syn.) 滑溜溜, 平滑, 光溜, 溜, 滑
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #1485
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    在光滑的路上开车会导致车祸。
    在光滑的路上開車會導致車禍。
    zài guāng huá de lù shang kāi chē huì dǎo zhì chē huò 。
    • Driving on a slippery road can lead to a car wreck.
  2. Mandarin
    她的皮肤光滑。
    她的皮膚光滑。
    tā de pí fū guāng huá 。
    • Her skin is smooth.
  3. Mandarin
    地球比台球更光滑。
    地球比枱球更光滑。
    dì qiú bǐ tái qiú gèng guāng huá 。
    • The Earth is smoother than a billiard ball.
  4. Mandarin
    它像婴儿的屁股一样光滑。
    它像嬰兒的屁股一樣光滑。
    tā xiàng yīng ér de pì gu yī yàng guāng huá 。
    • It's as smooth as a baby's bottom.
Examples (粵典–words.hk)
  1. Cantonese
    佢生完仔之后个肚皮仲系好光滑。
    佢生完仔之後個肚皮仲係好光滑。
    keoi5 saan1 jyun4 zai2 zi1 hau6 go3 tou5 pei4 zung6 hai6 hou2 gwong1 waat6.
    • After borning a son, her belly is still very glossy.
  2. Cantonese
    做得家务少,只手啲皮肤咪咁光滑啰。
    做得家務少,隻手啲皮膚咪咁光滑囉。
    zou6 dak1 gaa1 mou6 siu2, zek3 sau2 di1 pei4 fu1 mai6 gam3 gwong1 waat6 lo1.
    • He seldom does housework, so he has soft hands.
Examples (Wiktionary)
  1. Mandarin
    摩擦 摩擦 在这光滑的地上摩擦
    摩擦 摩擦 在這光滑的地上摩擦
    mó cā , mó cā , zài zhè guāng huá de dì shàng mó cā
    • Shuffle, shuffle, shuffling on this smooth floor.