vacuum doughnut
查询英语单词中文释义、音标、发音和例句。
vacuum doughnut
英
[vacuum doughnut]
美
[vacuum doughnut]
中文释义
环形真空室
单词分析
单词结构:
vacuum doughnut
字母数:15
记忆提示
🎯 重点记忆:
- 单词拼写:vacuum doughnut
- 核心含义:环形真空室
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更新时间:2026-09-01 13:38:51