| 词汇 | copper-bottomed |
| 释义 | copper-bottomed adjective uk/ˌkɒp.əˈbɒt.əmd/ us/ˌkɑː.pɚˈbɑːt̬.əmd/ UK（计划、交易、投资等）安全可靠的，稳妥保险的 A copper-bottomed plan, deal, or investment can be trusted completely because it is safe and certain to succeed. 铜底的 having a base made of copper a copper-bottomed saucepan 铜底的炖锅 |
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