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key stone的英文翻譯是什麼意思,詞典釋義與在線翻譯:
英英釋義
名詞 keystone:
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a central cohesive source of support and stability
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the central building block at the top of an arch or vault
key stone的用法和樣例:
例句
- The root of the big tree trends to edge away the corner stone.
這棵大樹的根可能會把牆角石頂走。
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