uānn-huih換血

to have a blood transfusion

to have a blood transfusion; to reorganise by introducing fresh personnel or content; to get a shake-up

English Wiktionary, “換血” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%8F%9B%E8%A1%80 · confidence: Medium (Wiktionary, Hokkien)