-
n.
名词
- 英语字母中的第二个字母，小写为b
- 乙等，良好
- 【数】第二，乙
- 第二已知数
- 硼
- B音，（音乐中）B调
- B的活字或印刷体
- 表示第二的符号
- 样子像字母B的东西
abbr.
缩略词
- 生于
adj.
形容词
- B的
- 第二的
Noun:
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aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
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originally thought to be a single vitamin but now separated into several B vitamins
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a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
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a logarithmic unit of sound intensity equal to 10 decibels
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(physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
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the 2nd letter of the Roman alphabet
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the blood group whose red cells carry the B antigen
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以上内容独家创作，受著作权保护，侵权必究
海词词典，十七年品牌
美
[biː]
