Ministry of Education 《Revised Mandarin Chinese Dictionary》

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Word	牛痘苗
Bopomofo	`ㄋㄧㄡ^ˊ` `ㄉㄡ^ˋ` `ㄇㄧㄠ^ˊ`
Hanyu pinyin	niú dòu miáo
Interpretation	由牛體痘瘡內的漿液製成，接種於人體，可預防天花。