First of all, we don't have tapes anymore in computers and even if we did, you don't want to be programming at that level.

首先，我们不再在计算机里面用磁盘了,即使我们用，你不会想在这个阶段上编程。

麻省理工公开课 - 计算机科学及编程导论课程节选

They invented the paper machine so they could mass-produce paper-- it didn't have to be handmade anymore-- and they invented wood pulp paper so it didn't have to be made out of cloth anymore.

于是人们发明了造纸机从而可以大量生产纸-,而不再需要手工制作-,后来人们还发明了木浆纸,所以后来不再用布料来制纸。

耶鲁公开课 - 金融市场课程节选

I am going to stop putting subscript e.

接下来我不再用下标e了。

麻省理工公开课 - 固态化学导论课程节选