keystone
查询英语单词中文释义、音标、发音和例句。
keystone
英
[keystone]
美
[keystone]
中文释义
n. 拱顶石, 楔石, 重点
单词分析
单词结构:
keystone
字母数:8
记忆提示
🎯 重点记忆:
- 单词拼写:keystone
- 核心含义:n. 拱顶石, 楔石, 重点
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更新时间:2026-08-29 01:00:00