Vaccination rate的相關(guān)資料：
臨近單詞
vaccination
vaccination against typhoid
vaccination against smallpox
vaccination against hepatitis B
vaccination against tuberculosis
Vaccination has a preventive effect
vaccination technique of jet injection
Vaccination has a preventive effect.
Vaccination for smallpox is efficacious
Vaccination safeguards us from smallpox.
Vaccination immunizes one against smallpox
