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Jyutping coi3 niu5
Pinyin cài niǎo

Definitions (CC-CEDICT)
  1. (coll.) sb new to a particular subject
  2. rookie
  3. beginner
  4. newbie
Definitions (Wiktionary)
  1. noun, informal
    newbie; novice; beginner; rookie
    (syn.) 新手
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    我的一些同学真是菜鸟,他们一点都不懂计算机。
    我的一些同學真是菜鳥,他們一點都不懂計算機。
    wǒ de yī xiē tóng xué zhēn shi cài niǎo , tā men yī diǎn dōu bù dǒng jì suàn jī 。
    • Some of my classmates are pure noobs; they know nothing about computing sciences.