To prove that factor a has no effect whatever on outcome b may be important in the sense that it refutes a hypothesis.

证明因素 a 对结果 b 没有任何影响可能是重要的，因为它驳斥了一个假设。

youdao

Reverse spelling (crumb for crum, a word in which b has no justification) is also a trivial mistake.

反向拼写（crum 拼成 crumb，b在这里没有理由存在）也是微不足道的错误。

youdao

The brain almost always has a plan B, even when deciding which hand to use to press a button, a new study finds.

一项新的研究表明，即使是在决定使用哪只手按下按钮的问题上，大脑也几乎总有一个备用方案。

youdao

And,an obese person has a B-M-I above thirty.

VOA: special.2009.07.21

B It swaps this one and these two, A and B, but it has no access to main's memory.

它交换了这个和这两个变量，A和，但是它没有介入到main的内存中。

哈佛公开课 - 计算机科学课程节选

It turns out when you do that women get hired far more suggesting that the stereotype is A, incorrect and B, has a real negative and unfair effect on people getting hired.

结果发现这样做的话，女人的录取率大大提高,这表明了，第一，刻板印象是不正确的,第二，消极和不公平地影响了,她们的录取率。

耶鲁公开课 - 心理学导论课程节选

But it's one thing to put people in uniform, and another thing to have clear command structure, or the capacity to move troops from point A to point B, or the capacity to make sure that the troop carrier from point A to point B has got the necessary air in its tires or oil in its engine.

NPR: Maliki Assures Bush on Iraqi Force's Readiness

O'Halloran has represented the Republic at all underage levels while Gamble has a B international cap.

BBC: SPORT | Football | Internationals | Republic squad hit by withdrawals

It is doubtful that the Fed or the Obama administration has a Plan B for dealing with any such shock.

FORBES: What's The Trigger That Will Cause The Fed To Act?