history of preventive inoculation

[history of preventive inoculation]
[history of preventive inoculation]

中文释义

预防接种史

单词分析

单词结构:

history of preventive inoculation

字母数:33

记忆提示

🎯 重点记忆:

  • 单词拼写:history of preventive inoculation
  • 核心含义:预防接种史