vaccination knife的相关资料：
临近单词
vaccination
Vaccination for smallpox is efficacious.
Vaccinations insure one against diseases.
Vaccination safeguards you from smallpox.
Vaccinations ensure one against diseases.
Vaccination immunizes people against smallpox
Vaccination immunizes one against smallpox.
Vaccinations and debeaking produce stresses.
Vaccination is a preventiveagainst smallpox.
Vaccination immunizes people against smallpox.
