| 单词 | black nails |
| 释义 | black nailsblack nailsBlackening of the nails may occur in Peutz-Jegher's disease, vitamin-B12 deficiency and post-irradiation. Black streaks in the matrix and nail plate may indicate a junctional melanocytic naevus or malignant melanoma. |
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。