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step sagging guard
step sagging guard
英
[step sagging guard]
美
[step sagging guard]
中文释义
梯级塌陷防护装置
单词分析
单词结构:
step sagging guard
字母数:18
记忆提示
🎯 重点记忆:
单词拼写:step sagging guard
核心含义:梯级塌陷防护装置
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更新时间:2026-01-30 03:23:41