graded bed
查询英语单词中文释义、音标、发音和例句。
graded bed
英
[graded bed]
美
[graded bed]
中文释义
序粒层;递变层;粒级层
单词分析
单词结构：
graded bed
字母数：10
记忆提示
🎯 重点记忆：
- 单词拼写：graded bed
- 核心含义：序粒层;递变层;粒级层
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更新时间：2026-08-30 15:08:56