对于那些还没有意识到这种不利条件的人来说，这指的是对那些姓氏以字母表下半部分的字母开头的人的歧视。

This, for those as yet unaware of such a disadvantage, refers to discrimination against those whose surnames begin with a letter in the lower half of the alphabet.

youdao

有一些单词以字母J开头。

There are some words begin with J.

youdao

必须以字母开头。

Must begin with a letter.

youdao

The teaching fellows right after the class will put up on the stage sheets of paper that are broken down by parts of the alphabet, so make sure you have your names on the concept sheet because you're getting grades for these, and then just put them up in the relevant part of the alphabet that you see on the stage.

助教们在课堂结束后,会把按字母顺序分好的报告纸,放在讲台上,所以请确保把你们的名字写在观点报告上,因为我们会以此评分,并将成绩与你在讲台上所看到的,以字母排序相应的部分放在一起

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Someone-- or someone had to implement, had to write a tool called printf that itself takes input between quotes and produces as output some characters on the screen.

需要有人去实现，这个printf函数,以双引号间的信息为输入,输出相应字母到屏幕上。

哈佛公开课 - 计算机科学课程节选