回潮 [－－]

Jyutping wui4 ciu4
Pinyin huí cháo

Definitions (CC-CEDICT)
  1. to become moist again
  2. to revive (usually of sth bad)
  3. resurgence
Definitions (Wiktionary)
  1. verb, figuratively
    to resurge; to reappear; to reemerge
  2. verb, of dried things
    to get damp again