键盘上第二排字母意思是：爱上对方往后就哭了。

The second row of letters on the keyboard mean: fall in love with each other and then cry.

youdao

That the phonebook was sorted alphabetically and that the array of numbers on the board behind the second row of paper itself was sorted alphabetically.

电话簿是按照字母顺序排列的,而且黑板上第二排后面的一系列数字,也是按字母顺排列的。

哈佛公开课 - 计算机科学课程节选