我可以借支笔吗？

Can I borrow a pen please?

《柯林斯英汉双解大词典》

请别挂断，我去拿支笔，好吗？

Could you hold the line and I'll just get my pen.

《柯林斯英汉双解大词典》

我用止血笔处理刮胡子割破的伤口。

I use a styptic pencil on shaving cuts.

《牛津词典》

And then since we have my red laser pointer, we will also try with the red laser pointer, which is centered at wavelength of 700 nanometers.

然后因为我们有我的红色激光笔，我们也可以用它试一下，它的波长集中在700纳米处。

麻省理工公开课 - 化学原理课程节选

but I mark the whole paper up with a lot of red ink if there are mistakes,

但我在批论文的时候，也会把语法错误的地方用红笔标出来，

与哲学系教授 - SpeakingMax英语口语达人

So I got out my pen and I did that. Where was I?

于是我把笔拿出来，也那样做了，我在哪？

麻省理工公开课 - 固态化学导论课程节选