b
复数形式
b's
1
si, si音
the 7th note in the C-major scale
In music, the pitch "B" is a specific note that is part of the musical scale. It is the seventh note in the C-major scale, which includes the notes C, D, E, F, G, A, and B. The note "B" can be found in different octaves, making its pitch either higher or lower depending on the context. It plays a crucial role in creating melodies and harmonies and is used to tune musical instruments. Understanding "B" helps musicians ensure their music is in tune and harmonically balanced.
2
杆菌, 好氧的杆状产芽孢细菌
aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
同义词：
4
b, 罗马字母表的第二个字母
the 2nd letter of the Roman alphabet
同义词：
5
靶恩, 核反应有效截面单位
(physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
同义词：
6
7
维生素B群, 维生素B复合体
originally thought to be a single vitamin but now separated into several B vitamins