B

noun

1. 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。
2. B音（C大调的第7音或音符）
   the 7th note in the scale of C major
3. （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。
4. （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？
5. （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

1. 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

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

1. Cars are for getting people from A to B in maximum safety.
   汽车用于将人们尽可能安全地从一地送往另一地。
2. There are B& Bs all over the islands.
   提供住宿和早餐的家庭旅馆遍布全岛。
3. Assign the letters of the alphabet their numerical values — A equals 1, B equals 2, etc.
   给字母表里的每个字母赋予相应的数值——A等于1，B等于2，等等。
4. 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。
5. 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。
6. We should require that every student is immunized against hepatitis B
   我们应要求每个学生都注射乙肝疫苗。
7. 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。
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. Liver cancer is linked to the hepatitis B virus
   肝癌与乙肝病毒存在关联。
10. Candidates who answered 'b' could be awarded half marks for demonstrating some understanding of the process
    回答b的选手表明对这个过程有所了解，因此可以得到一半的分数。
11. I'm giving him a B minus.
    我准备给他一个B—。
12. 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。
13. He passed through the doorway into Ward B
    他穿过门口进入B病房。
14. A squared plus B squared equals C squared.
    A的平方加上B的平方等于C的平方。
15. You are asked to swallow a capsule containing vitamin B
    你要服一粒维生素B胶囊。
16. Draw a line from A to B.
    从A到B划一条线。
17. Suppose A equals B.
    假定A等于B。
18. There the railway forks to A and B ( places).
    这条铁路在那儿分叉通向甲乙两地。
19. Mr. A was counsel for the plaintiff, and Mr. B for the defendant.
    A先生作原告的辩护人，B先生作被告的辩护人。
20. A and B are in love with each other.; A falls in love with B.
    甲与乙恋爱。
21. 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。
22. 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。
23. We use juxtaposition to denote conjunction, ab means both a and B.
    我们利用并列表示合取，ab意味着a与b两者。
24. A+ b and A-B are both factors of a2-b2.
    a+b和a-b都是a2-b2的因式。
25. Draw a straight line from a to B.
    从a到b画一条直线。
26. In china, the rate of chronic hepatitis B accepting antivirotic treatment is very low ( 19%).
    中国慢性乙肝患者接受抗病毒治疗的比例较低（19%）。
27. 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。
28. The basis matrix B is unimodular.
    基矩阵b是幺模的。
29. My mark in physics is B.
    我的物理学得了“b”。
30. 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-。

n.

from A to B

• 从一地到另一地
  from one place to another
  1. 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。