useful efficiency
查询英语单词中文释义、音标、发音和例句。
useful efficiency
英
[useful efficiency]
美
[useful efficiency]
中文释义
有效功率
单词分析
单词结构：
useful efficiency
字母数：17
记忆提示
🎯 重点记忆：
- 单词拼写：useful efficiency
- 核心含义：有效功率
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更新时间：2026-08-28 21:18:21