奶聲奶氣 [－声－气]

Jyutping naai seng1 naai hei3
Pinyin nǎi shēng nǎi qì

Definitions (Wiktionary)
  1. adj, of a voice
    childish
Examples (Wiktionary)
  1. Mandarin
    奶声奶气
    奶聲奶氣
    nǎi shēng nǎi qì
    • childish voice