backing line
查询英语单词中文释义、音标、发音和例句。
backing line
英
[backing line]
美
[backing line]
中文释义
前级管路
单词分析
单词结构:
backing line
字母数:12
记忆提示
🎯 重点记忆:
- 单词拼写:backing line
- 核心含义:前级管路
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更新时间:2026-08-30 12:32:05