Students mark the main ideas and important details with a pen or pencil, yellow or blue or orange.

学生们用黄色、蓝色或橙色的钢笔或铅笔标出主要思想和重要细节。

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Students of Grade 8 and Grade 9 should come with a notebook and a pen.

八年级和九年级的同学应带上笔记本和笔到场。

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Reading Gottlieb's article, I couldn't help but take a red pen, underline sentence after sentence, and write in the margins, 'OMG - these are my students' parents!'

看着Gottlieb的文章，我禁不住取出一支红笔，将一个又一个句子划出来，并在空白处写上“OMG——这就是我学生的父母！”

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And, believe it or not, I have students walk in and first thing a hand goes up and says do you have a pen? I cannot believe it.

不管信不信，我有些学生走进来，第一件事就举起手问,你有没有笔，难以置信。

麻省理工公开课 - 固态化学导论课程节选

It also advises students to pack a spare pen.

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The students quickly figured out that using a pen as a stylus worked better.

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Students are also paired with on-line "pen-pals" in the U.S. who help extend their vocabulary, though perhaps not always of the textbook variety.

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