But when you start doing scientific research or financial work, imprecision and rounding errors start to add up.

但如果你碰到涉及科学研究,或财政方面的项目时，不精确度,和错误就会累加。

哈佛公开课 - 计算机科学课程节选

One is how important it is to have more accurate measurement and how important it is for scientists to get a better handle on what people are eating.

其一是精确测量,是多么重要,对科学家来说,更好的处理人们吃了什么有多重要

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选