Most American colleges and universities use the grading system of A,B,C,D and F.

VOA: special.2009.03.05

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

Again I should have said first, index 0, the first one. I can similarly go in and say I'd like all the things between index 2 and index 4. And again, remember what a b c that does. Index 2 says start a 0. 1, 2. So a, b, c.

我还是要说一遍，索引为0的元素，是第一个元素，我可以要求返回索引,2和4之前的所有元素，请记住2,是从0开始的,那么0，1，2对应的是。

麻省理工公开课 - 计算机科学及编程导论课程节选

They are known as vitamins A, the B group,C,D,E and K.

VOA: special.2009.04.21

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 see no Mike Smiths because I'm on page 1 A where the A's simply are so I turn to the B's and the C's S and the D's and so forth and finally I get to the S's but in the worst case I've looked through 1,000 or so pages.

第一页没有找到叫Mike，Smith的人1,因为第一页姓名首字母是,于是我又接着找B，C，D……最终到了字母,但最坏的情况是,我翻了几千页才找到。

哈佛公开课 - 计算机科学课程节选

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