doornail
noun [ C ] uk/ˈdɔː.neɪl/ us/ˈdɔːr.neɪl/
（加固或装饰用的）护门帽钉，大头钉子
→ be as dead as a doornail informal
| 单词 | doornail |
| 释义 | doornail noun [ C ] uk/ˈdɔː.neɪl/ us/ˈdɔːr.neɪl/ （加固或装饰用的）护门帽钉，大头钉子 → be as dead as a doornail informal |
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