回爐 [－炉]

Jyutping wui4 lou4
Pinyin huí lú

Definitions (CC-CEDICT)
  1. to melt down
  2. to remelt (metals)
  3. fig. to acquire new education
  4. to bake again
Definitions (Wiktionary)
  1. verb
    to bake (cakes, etc.) again
  2. verb
    to melt down