Second, he looked at these people and measured how fast they walk from where their experiment was to the elevator.

第二，他观察这些人,记录他们从实验地点,走到电梯的时间。

哈佛公开课 - 幸福课课程节选

How long does it take me to find the k'th element? Linear. Because I've got to walk my way down it. OK? So in this case, you have linear access. Oh fudge knuckle.

线性的！因为我得从头,向下走一步步走,所以这里是线性访问，哦，有问题了吧。

麻省理工公开课 - 计算机科学及编程导论课程节选