a的中文翻译及用法
英音
[ei,?] ;
美音
[ei,?] ;
英语解释
- (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
- one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
- any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
- the basic unit of electric current adopted under the Systeme International d'Unites
- a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
- the blood group whose red cells carry the A antigen
- the 1st letter of the Roman alphabet
相似短语
- such a 这样的…
- with a will 热情地,起劲地
- not a 一个也不
- a bit of a 有点…的味道
- a hack of a lot of 好多好多…
- a slip of a girl n. 瘦长的姑娘
- a storm in a teacup n.<主英>茶杯里掀起的大风暴,小事引起的轩然大波,小题大作,大惊小怪
- a tempest in a barrel n. 小题大作
- a year and a day 满一年,整一年
- a canidate for a vacancy 候补
相似单词
- a art. 1.(非特指的)一(个) 2.(同类事物中)任何一个 3.每一(个) 4.某一种 5.(用于某些物质名词前)一种 6.(=the same)同一(个) 7.(与否定词连用,
- μA microampere微安(培)
- A$ 澳大利亚元 Australian dollar的缩写,通用于澳大利亚(Australia)、圣诞岛(Chrismas I.)、可可斯群岛(Cocos Is.)、吉耳贝特群岛(Gilbert Is.)
- A n. 1.英语字母第一个字母,小写为a 2.(用大写A)甲等,优等 abbr. 1.=academician;academy 2.=alto 3.=America;American
- A.A.A.A. 美国广告代理业者协会 American Association of Advertising Agency.
- A.A.A. (1)美国仲裁协会 见American Arbitration Association. (2)美国汽车协会 见American Automobile Association. (3)美国农业调整法
- A.A.P. 美国儿科学会American Academy of Pediatrics
- A.A.R. (1)全险;一切险 见against all risks. (2)美国铁路协会 Association of American Railroads.
- B.A.A. 【缩写】 =Bachelor of Applied Arts 实用美术学士
- f.a.a. =F.A.a. 全损险 free from(of) all average,见total loss only.
1.(非特指的)一(个)
2.(同类事物中)任何一个
3.每一(个)
4.某一种
5.(用于某些物质名词前)一种
6.(=the same)同一(个)
7.(与否定词连用,相当于any)
8.【口】(用于虚拟语气,=have)
pron.【方】
1.他,她,它
2.他们,她们,它们
3.我
abbr.
1.(用于旅行时刻表)arrive
2.(用于日期前)before