B
01
the 7th note in the C-major scale
例子
The melody ends on a B.
02
the blood group whose red cells carry the B antigen
语法信息
专有
复数形式
bacilli
例子
Her blood type is B.
03
the 2nd letter of the Roman alphabet
例子
The word begins with a B.
04
originally thought to be a single vitamin but now separated into several B vitamins
例子
The cereal is fortified with vitamin B.
05
a grade indicating good but not excellent academic performance
例子
She earned a B in chemistry.
