熟檔 [－档]

Jyutping suk6 dong3
Pinyin shú dàng

Definitions (CC-CANTO)
  1. to know something well; to be the expert in something
Definitions (粵典–words.hk)
  1. 形容詞
    內行​；​熟行​熟路
    familiar; professional
Definitions (Kaifangcidian)
  1. 熟悉
  2. 內行 – 内行