back someone up
查询英语单词中文释义、音标、发音和例句。
back someone up
英
[back someone up]
美
[back someone up]
中文释义
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单词分析
单词结构:
back someone up
字母数:15
记忆提示
🎯 重点记忆:
- 单词拼写:back someone up
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更新时间:2026-09-21 11:41:32