| 单词 | d |
| 释义 | d 7 ENTRIES FOUND: d noun plural d's or ds or D's or Ds d noun plural d's or ds or D's or Ds Learner's definition of D 1 : the fourth letter of the English alphabet英语字母表的第4个字母 [count]
[noncount]
2 : a musical note or key referred to by the letter D : the second tone of a C-major scale*D音（C大调音的第2音或音符）；D调 [count]
[noncount]
3 [count] : a grade that is given to a student for doing poor work学业成绩）第四等，差等
4 : the Roman numeral that means 500（罗马数字）五百
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英汉双解词典包含109353条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。