However, facts A, B, and C are never used again; they were instrumental to the argument because they allowed one to establish D, but once D is established, A, B, and C can be safely forgotten.

然而，A,B和C再也没有被使用到；他们只是辅助性的证明，因为它们被用来建立D，然而一旦D被建立起来后，A,B,C可以被毫无顾虑地忘掉。

youdao

The task executes when it receives business items A and B, or C and D, or B and C as inputs.

任务在接收到业务项 A 和 B，或 C 和 D，或B 和 C 作为输入时，该任务将执行。

youdao

That is even more expensive than it sounds, because each well produces only a small amount: perhaps 180 b/d, compared with as much as 7, 000 b/d from some Persian Gulf wells.

而这实际上比它听起来要昂贵的多，因为每个油井只能产很小一部分数量的石油：大约180桶／天，而与之相比，波斯湾的油井的日产量为7000桶／天。

youdao

"There's no indication that the B-1 breaking off from positive I.D.

VOA: standard.2009.06.08

I quote in here a guy who croaks before this course starts, Jean Bodin, B-O-D-I-N.

在这儿我引用一位逝者提出的观点,金博丹

耶鲁公开课 - 欧洲文明课程节选

I personally don't like swings that much and it's the B-/B+ range, so I'd much rather prefer that to a swing from A to C, and that's my reason.

我不喜欢成绩波动很大的,比如B-/B+这个范围,所以我还是喜欢像A到C这样小点的,这就是我的原因

耶鲁公开课 - 博弈论课程节选

Just as a virus that affects humans can mutate and confound medical experts, each version of Sasser -- labeled A, B, C, and D -- poses slightly different challenges for information technology experts.

CNN: Sasser worm rips through Internet

Another who was depressed and drinking heavily was low on vitamins D and B-12.

WSJ: Confusing Medical Ailments With Mental Illness

It's 25 kilometers round in a town called Badme, B-A-D-M-E.

NPR: Africa Update: Somalia, Eritrea and Sudan