B

英 [biː]

美 [biː]

n.  英语字母表的第2个字母; B音(C大调的第7音或音符); (学业成绩)第二等，良
symb.  B级公路(英国公路代号，后接数字)

医学计算机

BNC.2992

习惯用语

n.

from A to B
• 从一地到另一地
  from one place to another
• For me a car is just a means of getting from A to B.
  在我看来，汽车只不过是从一地到另一地的代步工具。

牛津词典

noun

• 英语字母表的第2个字母
  the second letter of the English alphabet
  1. ‘Butter’ begins with (a) B/‘B’.
     butter一词以字母b开头。
• B音（C大调的第7音或音符）
  the 7th note in the scale of C major
• （学业成绩）第二等，良
  the second highest mark/grade that a student can get for a piece of work
  1. She got (a) B in/for History.
     她的历史科成绩是良。
• （表示两个或两个以上可能性中的）第二个
  used to represent the second of two or more possibilities
  1. Shall we go for plan A or plan B?
     我们选用第一方案还是第二方案？
• （假设的或不指出姓名身份的第二人）乙，乙某
  used to represent a person, for example in an imagined situation or to hide their identity
  1. Let's pretend A meets B in the park.
     假设甲某和乙某在公园里相遇。

symbol

• B级公路（英国公路代号，后接数字）
  used in Britain before a number to refer to a particular secondary road
  1. the B1224 to York
     通往约克郡的B1224号公路

柯林斯词典

• 英语字母表的第2个字母
  Bis the second letter of the English alphabet.
• C大调音阶中的第七音；B音
  In music,Bis the seventh note in the scale of C major.
• （作业、考试等的）乙等，良好
  If you get aBas a mark for a piece of work or in an exam, your work is good.
• （用于首字母为b的一些单词的缩写，如born）
  Borbis used as an abbreviation for words beginning with b, for example 'born'.

双语例句

• Enucleated cells are prepared by removing cell nuclei in the presence of the drug, cytochalasin B.
  无核细胞是通过药物、细胞松弛素b把细胞核去掉制备的。
• Frequently, men who check answer ( b) have not actually had the experience of being repeatedly rejected by women.
  多数情况下，选（b）的男人没有真的尝过三番五次被女人拒绝的滋味。
• I got a B for my last essay, but only a B minus for this one.
  我上一篇作文得了个b，但这一篇只得b-。
• Liver cancer is linked to the hepatitis B virus
  肝癌与乙肝病毒存在关联。
• A grade B judge could only be allowed to judge alongside a qualified grade A judge.
  B级裁判只能协同有A级资质的裁判进行评判。
• I'm giving him a B minus.
  我准备给他一个B—。
• Their solution was to isolate specific clones of B cells and fuse them with cancer cells
  他们的解决方案是分离出特定的B细胞克隆，然后将它们和癌细胞结合。
• We joined point a to point B in a straight line.
  我们画一直线把a点和b点连接起来。
• 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。
• Farmer Brown's cattle are branded with the letter B.
  农场主布朗的牛都烙上了字母“B”的印记。