D

美 [diː]英 [diː]
  • n.英语字母表的第4个字母;D音(C大调的第2音或音符);(学业成绩)第四等,差
  • abbr.民主党人;民主党的
  • symb.(罗马数字)500
DD

noun

【不规则形式】pl. Ds D's d's
1

英语字母表的第4个字母
the fourth letter of the English alphabet

‘Dog’ begins with (a) D/‘D’.

dog一词以字母d开头。

2

D音(C大调的第2音或音符)
the second note in the scale of C major

3

(学业成绩)第四等,差
the fourth highest mark/grade that a student can get for a piece of work, showing that it is not very good

He got (a) D/‘D’ in/for Geography.

他的地理成绩得D。

abbr.

in politics in the US 美国政治民主党人;民主党的
Democrat ; Democratic

also D. especially in NAmE

symbol

(罗马数字)500
the number 500 in Roman numerals

D

频次

  • 1
    N-VAR 英语字母表的第 4 个字母
    D is the fourth letter of the English alphabet.

  • 2
    N-VAR C 大调音阶中的第二音;D 音
    In music, D is the second note in the scale of C major.

  • 3
    N-VAR (作业、考试成绩等的)丁等,D等,差
    If you get a D as a mark for a piece of work or in an exam, your work is below average or poor.

    I got a D+.

    我得了个 D+。

  • 4
    (用于墓碑上或工具书中等的日期前)
    d. is an abbreviation for (缩略=) died when it is written in front of dates, for example on graves or in reference books.

  • 5
    (英国1971年前使用的旧制辅币)
    d was a written abbreviation for (书面缩略=)penny or pence in Britain before decimal currency was introduced in 1971.

  • 6
    (用于首字母为 d 的一些单词的缩写,如 day, defeated或district)
    D or d is used as an abbreviation for words beginning with d, such as 'day', 'defeated', or 'district'.

  1. Trombones sharply pronounce a d , followed by tuba and oboe in a sudden diminuendo .

    长号尖锐地吹出一个d音,之后是大号和双簧管的突然的渐弱演奏。

  2. I had a strong sense of d é j à vu as I entered the room .

    进这屋子时我有一种似曾来过的幻觉。

  3. Work seems to be her sole raison d ' ê tre .

    工作似乎成了她生存的唯一理由。

  4. This special form of vitamin D is naturally present in breast milk

    这种特殊形态的维生素D天然存在于母乳中。

  5. I got a D + .

    我得了个D+。

  6. This kind of lighting encourages vitamin D synthesis in the skin .

    这种光照会促进皮肤中维生素D的合成。

  7. She went from a D in her mocks to a B in the real thing .

    她模拟考试得了D,到了真正考试的时候却拿了个B。

  8. Decide whether the ball is in square A , B , C , or D , then call and leave your answer

    选定球放在A、B、C、D哪个方格,然后打电话来,留下您的答案。

  9. In figure 24 ' D ' denotes quantity demanded and ' S ' denotes quantity supplied .

    在图24中,D代表需求量而S代表供应量。

  10. I had a sense of d é j à - vu because I could recognise everything in London .

    我有一种似曾相识的感觉,因为我能认出伦敦的一切。

  11. The second quotation is from an essay that D H Lawrence wrote in the nineteen-twenties .

    第二段引文出自D.H.劳伦斯20世纪20年代写的一篇文章。

  12. If the note of D is sounded on a harp , all the corresponding D strings of other octaves will likewise resonate .

    如果用竖琴演奏D音符,其他八度音阶所有相应的D弦都将发出共鸣。

  13. The trend of d é tente cannot be reversed .

    和解的潮流不可逆转。

  14. Can you go down to a low d ?

    你能降到低音d吗?

  15. The teacher ~ d as he looked at my work .

    老师看着我的作业就皱起了眉头。

  16. He broke a leg and was ~ d for a month .

    他跌断了一条腿,要留医一个月。

  17. I ' d like to see more non-industry research done on GM crops — not just because we 'd worry less about bias , but also because seed companies like Monsanto and Pioneer shouldn 't be the only entities working to harness genetic modification .

    我希望看到更多关于转基因作物的非工业研究,不仅仅因为我们不太担心偏见,还因为除了像孟山都和先锋这样的种子公司以外,还应该有其他致力于利用基因改造的实体。

  18. Students with I . D . cards can attend the events for free .

    持身份证的学生可以免费参加活动。

  19. Cherry Blossom Bike Tour in Washington , D . C .

    华盛顿樱花骑行之旅

  20. Join a small group bike tour for an evening of exploration in the heart of Washington , D . C .

    参加一个小型团体自行车之旅,晚上参观华盛顿特区中心。

  21. To make sure you get enough Vitamin D — but still protect your skin — put on sunscreen right as you head outside .

    为了确保你有足够的维生素D——同时还得保护你的皮肤——在你出门的时候涂上防晒霜吧。

  22. " Not fair , " I ' d loudly remind anyone within earshot upon our return home .

    "不公平,"我们回家后,我大声提醒所有听得见的人。

  23. Join a guided bike tour and view some of the most popular monuments in Washington , D . C .

    在导游的带领下,参加一个的自行车之旅;参观华盛顿特区一些最受欢迎的纪念碑。

  24. This small group bike tour is a fantastic way to see the world-famous cherry trees with beautiful flowers of Washington , D . C .

    这个小型团体自行车之旅能以一种奇妙的方式游览华盛顿特区著名的樱花树,以及绽放的美丽樱花。

  25. It takes sunscreen about fifteen minutes to start working , and that 's plenty of time for your skin to absorb a day 's worth of Vitamin D .

    防晒霜大约需要15分钟才能发挥作用,这段时间足够让你的皮肤吸收一天所需的维生素D。

  26. " As a retired ear doctor , I heartily recommend TV Ears to people with normal hearing as well as those with hearing loss . " Robert Forbes , M. D , CA

    “作为一名退休的耳科医生,我衷心向听力正常和听力丧失的人推荐TVEars耳机。”加利福尼亚州医学博士罗伯特·福布斯说道。

  27. Morning or Afternoon , this bike tour is the perfect tour for D . C . newcomers and locals looking to experience Washington , D . C . in a healthy way with minimum effort .

    无论是早上还是下午,这趟自行车之旅都是华盛顿特区新来者和当地人的完美之旅,他们希望用最少的努力以健康的方式体验华盛顿特区。

  28. B : We ' d better take umbrellas with us .

    B:我们最好带上雨伞。

  29. This means you are getting   Vitamin   D .

    这意味着你正在获取维生素D。

  30. D : Oh , really ? Well , I 'm free this afternoon .

    D:哦,真的吗?嗯,我今天下午有空。