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

Task 4 has an input criterion requiring only business items A and B for the upper branch, while for the lower branch it has a separate criterion that includes business items A, B, and D.

Task 4 有一个输入条件，只需将业务项 A 和 B 提供给上面的分支，而它针对下面分支的则是一个单独的条件，其中包含业务项 A、B 和 D。

youdao

An A is worth four points, a B three points, a C two points and a D one point.

VOA: special.2009.03.05

So they began to call this A and this B and this C and this D and this E, this F, this G.

他们开始把这叫做A,B和C,这个是D,E,F,G

耶鲁公开课 - 聆听音乐课程节选

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

Oh, we almost forgot -- they've boosted out the keyboard in favor of a more useful D-pad and A, B, X, Y button formation -- which is, needless to say, awesome for playing awesome games.

ENGADGET: Seabright PC430 "micro PC" spurns keyboard, not coolness

It is the phenomenon whereby we assume that because people are good at doing A they will be good at doing B, C and D (or the reverse because they are bad at doing A they will be bad at doing B, C and D).

ECONOMIST: Idea

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

NPR: Africa Update: Somalia, Eritrea and Sudan