追加剂 Traditional 追加劑 zhuī jiā jì 🔊 booster dose + Review this word Meanings zhuī jiā jì 追加劑 (Tw) (vaccine) booster dosebooster shot Its characters 追zhuīto chaseHSK 5加jiāto addHSK 3剂jìa compound made by mixing ingredients…HSK 7–9