copper-bottomed
adjective /ˌkɒpə ˈbɒtəmd/
/ˌkɑːpər ˈbɑːtəmd/
(British English)- that you can trust or rely on completely
- a copper-bottomed guarantee
单词 | copper-bottomed |
释义 | copper-bottomedadjective /ˌkɒpə ˈbɒtəmd/ /ˌkɑːpər ˈbɑːtəmd/ (British English)
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