That note should be B flat, not B.

那个音应该是降B音，而不是B音。

《牛津词典》

It would be bad to start out at a B or C.

以 B 或 C 的成绩作为起点是不利的。

youdao

B This point will be b.

这点是。

youdao

The hepatitis B vaccine is considered to be the first medicine that can protect people against liver cancer.

VOA: special.2010.11.16

But is has another sense which is not a rhetorical sense, because metaphor is sort of the heart of rhetoric, the rhetorical sense A is B--when, by the way, A we know perfectly well that A is not B. How can A be B? A is only A.

但是is有另外一个意思，修辞之外的一种意思，因为暗喻差不多可以说是修辞的中心，修辞中所说的A是B，顺便说一下，我们十分清楚地知道A不是B，A怎么能是B呢，A就是。

耶鲁公开课 - 文学理论导论课程节选

qB This must be heat q B, right. So again, but now let's also look at our special function.

这个不是，这应该是热量，对吧？所以又一次，这些是我们熟悉的。

麻省理工公开课 - 热力学与动力学课程节选

The typical pitch of a vuvuzela is said to be B flat below middle C.

BBC: 10 things about the vuvuzela

"Takeout candidates tend to be B students, " says Lutzius.

FORBES: Riding the REIT Buyout Wave

The studio knew that it was pointless and counter-productive to throw tens-of-millions of dollars in order to slightly improve what was always going to be a B-movie action picture based on a line of toys.

FORBES: Paramount And MGM Did Everything Right With 'G.I. Joe: Retaliation' (Except Make A Good Movie)