摸底 [－－]

Jyutping mo1 dai2
Pinyin mō dǐ

Definitions (粵典–words.hk)
  1. 動詞
    摸索​對方​底子​、​背景
    to check up one someone's background
  2. 動詞
    摸索​對方底​線
    to investigate someone

摸底 [－－]

Jyutping mo2 dai2
Pinyin mō dǐ

Definitions (CC-CEDICT)
  1. to have a clear view (of a situation)
  2. to fish for information
  3. fact-finding
Definitions (粵典–words.hk)
  1. 動詞
    摸索​對方​底子​、​背景
    to check up one someone's background
  2. 動詞
    摸索​對方底​線
    to investigate someone
Definitions (Wiktionary)
  1. verb
    to try to find out the real intention or situation; to sound somebody out
  2. verb
    to know the real situation
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）