| 单词 | 13 |
| 释义 | 13A Number traditionally associated with bad luck. A so-called Baker's Dozen is equal to 13. Fear of thenumber 13 is called Triskaidekaphobia. See also Baker's Dozen, Friday the Thirteenth, Triskaidekaphobia |
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数学辞典收录了8975条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。