The 'b' had been wrongly written as a 'd'.

b错写成d了。

《牛津词典》

The hard volcanic stone was a resource that had been in great demand for many years, at least since the rise of the Olmecs (a people who flourished between 1200 and 400 B.

坚硬的火山岩是一种多年来需求量很大的资源，至少从奥尔梅克人（一种生活在公元前1200年至400年之间的民族）崛起以来是这样。

youdao

This time, instead of butter, the toast had a letter "B" written on one side.

这一次，在吐司的一边没有涂黄油，而是写了一个字母 “B”。

youdao

He had planned to perform on New Year's Eve at B.B.King's Blues Club in New York City.

VOA: special.2010.05.16

So, now I hope you have in your mind a picture of the way the Greek world had expanded by the time this wave of colonization was complete--pretty complete, sometime in the seventh century B.C.

希望现在你脑海中有一幅,那时候希腊世界扩张的地图,在公元前七世纪的某一阶段,形成了一个完整的殖民浪潮,相当完整

耶鲁公开课 - 古希腊历史简介课程节选

In an extreme case b, we had a z effective of 2, so essentially what we had was no shielding at all.

我们有效的z是，所以本质上我们完全没有屏蔽。

麻省理工公开课 - 化学原理课程节选

You know, that they had had Tina Turner, and they had had B.

NPR: Etta James: Still Singing Her Song

If John was a genius and had a B average in school while Jim was not the genius sort but also had a B average, Jim was more likely than John to be successful.

FORBES: What Makes Some MBAs Wildly Successful?

Maybe that wouldn't happen if you had the B.

ENGADGET: Ejector seat-equipped B.O.N.D. bicycle doesn't expect thieves to talk, it expects them to fly (video)