Later,a stagecoach could make the trip in thirteen to fourteen days by moving day and night and changing animals often.

VOA: special.2009.03.30

Things are moving and changing ; without the whole page reloading; when we looked towards the end of the semester Ajax enabled websites much like the ones we all use today.

不用重新更换页面,因为页面上的东西一直在变化;,在学期即将结束时我们会学习如何实现这些动态的东西,还有Ajax对于浏览器兼容性的贡献。

哈佛公开课 - 计算机科学课程节选

My body is constantly changing because the relationships between my arms and my head and so forth. My muscles are moving.

我的身体在不断改变,因为我的胳膊和脑袋的关系等等,我的肌肉在动。

耶鲁公开课 - 死亡课程节选