伏流 [－－]

Jyutping fuk6 lau4
Pinyin fú liú

Definitions (CC-CEDICT)
  1. hidden stream
  2. ground stream
Definitions (Wiktionary)
  1. noun
    undercurrent; underflow
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）