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单词解释

a[ei,ə]  复制词条

  • art. [非特指的]一[个],每一,同一,第一,字母A, A字形

常用短语

  1. beat a retreat   
    鸣金收兵,打退堂鼓,撤退,放弃
  2. a great deal   
    很多,大量,…得多
  3. a bit   
    一点儿,有点,些许.
  4. have a ball   
    v. 狂欢
  5. a couple of   
    一对,一双,两三个
  6. have a fit   
    v.<口>大吃一惊,大发脾气
  7. get a line   
    取得关于...的情报 打听明白(某人或某事)
  8. half a dozen   
    adj. half dozens 半打,六个
  9. quite a   
    相当...的 很有点...的
  10. spend a penny   
    上厕所 旧时英国公厕的自动门须投一便士硬币后方行开启


  11.  展开显示全部常用短语 ...  

与 a 相关的例句

  1. A rude,insensitive person;a boor.乡下人粗鲁的、迟钝的人;乡下佬
  2. a patriarchal social system.父权制社会制度
  3. The Congress passed a new bankruptcy law.国会通过了一项新的破产法。
  4. The magazine exposed the politician as a crook.那份杂志揭穿了该政客是个行骗的老手。
  5. To trap or ensnare,as by a stratagem.诱捕设计使落入陷井或使入圈套
  6. The author wove a story from three plots.作者把三个情节编成一个故事。
  7. He thinks fine clothes are a mark of gentility.他认为衣著讲究是身分高贵的标志
  8. She is a pearl among women.她是女中的英杰。

英英解释

7个名词解释

  1. a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
    [同] a , angstrom , angstrom unit
  2. any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
    [同] a , antiophthalmic factor , axerophthol , vitamin a
  3. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
    [同] a , deoxyadenosine monophosphate
  4. (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
    [同] a , adenine
  5. the basic unit of electric current adopted under the Systeme International d'Unites
    [同] a , amp , ampere
    [例]
    • a typical household circuit carries 15 to 50 amps
  6. the 1st letter of the Roman alphabet
    [同] a , letter a
  7. the blood group whose red cells carry the A antigen
    [同] a , group a , type a

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