black boundary
查询英语单词中文释义、音标、发音和例句。
black boundary
英
[black boundary]
美
[black boundary]
中文释义
边界[条件]
单词分析
单词结构：
black boundary
字母数：14
记忆提示
🎯 重点记忆：
- 单词拼写：black boundary
- 核心含义：边界[条件]
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更新时间：2026-09-01 03:46:10