| 词汇 | dental-dam |
| 释义 | dental dam noun[ C ] uk /ˈden.təl ˌdæm/ us /ˈden.t̬əl ˌdæm/ a piece of rubber that is used to keep the teeth dry during dental treatment, or that is used to protect the mouth during sexual activity牙科用橡皮布（牙科治疗中使用的胶皮防水布或口交中防止染上艾滋病所使用的阻隔膜） |
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