预防免疫 Traditional 預防免疫 yù fáng miǎn yì 🔊 prophylactic inoculation + Keep this word Meanings yù fáng miǎn yì 預防免疫 prophylactic inoculation Its characters 预yùto advance防fángto protectHSK 5免miǎnto excuse sbHSK 6疫yìepidemic; plague