B: I went ［back］for it. But it was already gone.

我回去找了，包已经丢了。

youdao

B Oh, excellent. I'll be back about 5.

b噢，太好了。我大约5点回来。

youdao

B I hurt my back yesterday.

B我昨天伤到了后背。

youdao

This refers--this actually goes back to B.F. Skinner, a psychologist who flourished in the first half of this century.

这要追溯到B.F.斯金纳,一位活跃在上世纪前期的心理学家

耶鲁公开课 - 金融市场课程节选

The next phrase, B-- is very similar, but here it takes the deviation-- And gets it back-- gets us back to the tonic.

下一乐句,B,与之前非常相似,但从这里偏离,又回来,回到主音

耶鲁公开课 - 聆听音乐课程节选

Well, go back to what I did before.

我会用a*a的b-1次方的形式来表达。

麻省理工公开课 - 计算机科学及编程导论课程节选

Buffett set a specific price-to-book-value target for the buybacks, saying Berkshire ( NYSE: BRK-B) would buy back its own shares but only at prices up to a 10% premium over the then-current book value of Berkshire shares.

FORBES: The Importance of Book Value

To be sure it reaches the necessary speeds, the X-43A will be attached to a booster rocket and ride piggy back on a B-52 to 24, 000 feet.

BBC: Mach 10 scramjet prepares for launch

With each downturn, borderline entrepreneurs scurry back to B-school, later to return and get jobs from the real entrepreneurs who persisted.

FORBES: SOIL FOR THE SEED