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Jyutping nai4 seoi2 si1
Pinyin ní shuǐ shī

Definitions (Wiktionary)
  1. noun
    bricklayer; tiler; plasterer
    (syn.) 泥瓦匠, 泥水匠, 泥工, 瓦工, 泥瓦工, 瓦匠, 泥水工