| 词汇 | 来历不明 |
| 释义 | 来历不明来历不明[lái lì bù míng]1.■unknown source or origin; It is not clear how he comes by so many valuables.; It is not clear how he comes to occupy the present important position.; obscure [unknown] origin; of dubious background; of questionable antecedents; one's legal identity not clarified of unknown origin:这辆卡车来历不明。This truck is of unknown origin. |
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