Let's forget about a letter, let's stick with an e-mail, or a text message.

就算你没有写过信，写电子邮件，发短信也算一种写作。

普林斯顿公开课 - 人性课程节选

We should call it E-flat and put it up on the E line because there's kind of rule here that you have to use up each letter name in turn, each letter name in turn.

我们应该称之为降E,把它放在E的谱线上,因为这算是一个规则,要依次使用每个字母,依次用每个字母

耶鲁公开课 - 聆听音乐课程节选