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Jyutping mou4 mou4 jyu5
Pinyin máo máo yǔ

Definitions (Wiktionary)
  1. noun, figuratively
    tip-off
  2. noun
    drizzle; light rain
  3. noun, figuratively
    piece of cake; mere trifle

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Jyutping mou4 mou1 jyu5
Pinyin máo mao yǔ

Definitions (粵典–words.hk)
  1. 名詞
    形容​雨滴​好細​,​雨量​亦​都​唔​高​,​細雨​濛濛​嘅​天​氣​現​象​。​(​量​詞​:​場​)
    fine rain; drizzle
    • 落毛毛雨啫,都打得波𠺝。
      落毛毛雨啫,都打得波𠺝。
      lok6 mou4 mou4 jyu5 ze1, dou1 daa2 dak1 bo1 gaak3.
      It's just drizzling, it's still plausible to play basketball.

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Jyutping mou1 mou1 jyu5
Pinyin máo mao yǔ

Definitions (粵典–words.hk)
  1. 名詞
    形容​雨滴​好細​,​雨量​亦​都​唔​高​,​細雨​濛濛​嘅​天​氣​現​象​。​(​量​詞​:​場​)
    fine rain; drizzle
    • 落毛毛雨啫,都打得波𠺝。
      落毛毛雨啫,都打得波𠺝。
      lok6 mou4 mou4 jyu5 ze1, dou1 daa2 dak1 bo1 gaak3.
      It's just drizzling, it's still plausible to play basketball.

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Jyutping mou4 mou4 jyu5
Pinyin máo mao yǔ

Definitions (CC-CEDICT)
  1. drizzle; light rain
  2. (fig.) mere trifle; sth that has only a weak effect
Definitions (粵典–words.hk)
  1. 名詞
    形容​雨滴​好細​,​雨量​亦​都​唔​高​,​細雨​濛濛​嘅​天​氣​現​象​。​(​量​詞​:​場​)
    fine rain; drizzle
    • 落毛毛雨啫,都打得波𠺝。
      落毛毛雨啫,都打得波𠺝。
      lok6 mou4 mou4 jyu5 ze1, dou1 daa2 dak1 bo1 gaak3.
      It's just drizzling, it's still plausible to play basketball.
Definitions (Wiktionary)
  1. noun, figuratively
    tip-off
  2. noun
    drizzle; light rain
  3. noun, figuratively
    piece of cake; mere trifle
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 臺陸用法和差異
    「​毛毛雨​」​通常​是​指​小雨​,​雨滴​細如​絨毛​、​不成​雨絲​。​而​大陸​所說​的​「​毛毛雨​」​,​也​指​微不足道​的​事情​,​例如​:​這種​小事​不過​是點​毛毛雨​,​何必​大驚小怪​。​另外​也​指​事先​打招呼​,​例如​:​政策​公開​前​,​有關​單位​是​先下點​毛毛雨​,​好​讓​大家​有個​心理準備​。
Examples (粵典–words.hk)
  1. Cantonese
    毛毛雨
    毛毛雨
    mou4 mou4 jyu5
    • drizzle
  2. Cantonese
    落毛毛雨啫,都打得波𠺝。
    落毛毛雨啫,都打得波𠺝。
    lok6 mou4 mou4 jyu5 ze1, dou1 daa2 dak1 bo1 gaak3.
    • It's just drizzling, it's still plausible to play basketball.
Examples (Wiktionary)
  1. Mandarin
    毛毛雨
    毛毛雨
    máo máo yǔ
    • drizzle
  2. Mandarin
    在下毛毛雨或西北雨的天气里,环顾四周也常常是一片迷蒙的状态,身处在这种迷蒙状态的人们,也容易失去方向感,因此下雨的状态与起雾的状况其实有相近之处。
    在下毛毛雨或西北雨的天气里,环顾四周也常常是一片迷蒙的状态,身处在这种迷蒙状态的人们,也容易失去方向感,因此下雨的状态与起雾的状况其实有相近之处。
    From : 2014 , 林美容 and 李家愷 , 《 魔神仔的人類學想像 》 , pa ge 227
    • In the climate of drizzles and summer showers, it is always in a misty condition when you look around, and people in these kinds of misty conditions easily lose their sense of direction; therefore, rainy conditions and foggy conditions do actually have some similarities.