helpful system
查询英语单词中文释义、音标、发音和例句。
helpful system
英
[helpful system]
美
[helpful system]
中文释义
un. 一套有效的管理系统
单词分析
单词结构:
helpful system
字母数:14
记忆提示
🎯 重点记忆:
- 单词拼写:helpful system
- 核心含义:un. 一套有效的管理系统
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更新时间:2026-08-30 11:40:16