Moreover, when A is a nondegenerate, symmetric and copositive plus matrix, the sequence converges to a solution of the problem.

此外，当矩阵为非退化对称双正加阵时，该序列收敛。

youdao

A is a type.

a是类型。

youdao

Section a is a listing of the of the business objectives.

部分A是商业目标的清单。

youdao

A fistula is a hole that develops between two organs.

VOA: special.2010.08.09

This is Aristotle's Law of Identity: A is A-- it feels good to feel good.

这是亚里斯多德的“同一律：,一即一，感觉好就是感觉好。

哈佛公开课 - 幸福课课程节选

B In fact, it's even a question whether A is A, but it's certainly not B, right? This much we know. In the grammatical sense there is no sort of mystification about the metaphor.

实际上，人们甚至对A是不是A都有疑问，但肯定不是，是吧，我们都知道这点，而从语法的角度来看,并没有像暗喻一样的神秘化。

耶鲁公开课 - 文学理论导论课程节选

Again and again, he tells me, it is not a settlement, it is a city.

BBC: Jerusalem Diary: Monday 21 September

That's why a low leverage ratio is not a guarantee that a bank is safe.

BBC: If banks are treated as naughty kids...

There is a shared agreement this is a problem that has to be dealt with.

BBC: Low viciousness and high drama