principal main track
查询英语单词中文释义、音标、发音和例句。
principal main track
英
[principal main track]
美
[principal main track]
中文释义
主正线
单词分析
单词结构:
principal main track
字母数:20
记忆提示
🎯 重点记忆:
- 单词拼写:principal main track
- 核心含义:主正线
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更新时间:2026-09-20 08:29:41