cow-and-calf system

英 [cow-and-calf system]
美 [cow-and-calf system]

中文释义

繁殖母牛制

单词分析

单词结构：

cow-and-calf system

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：cow-and-calf system
  • 核心含义：繁殖母牛制

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更新时间：2026-02-06 05:50:12