cumulative hour的意思|示意

New moms may feel their brain cells dying with every cumulative hour of sleep loss. But a new study offers hope.

产后妈妈可能会感觉他们的脑细胞随着睡眠在一分一秒的减少。但是新的研究让我们看到希望。

A set of "summary" equations and notes, no longer than 3 single sided letter-size pages for the hour exams and 12 (cumulative) pages for the final, can be used in these exams.

考试中可参考公式和笔记汇整，一小时考试可使用不长于3页单面信纸大小的纸，加上期末考试共可用12页纸(累记)。

The Final Exam is a 3-hour, cumulative exam, covering the entirety of the course.

期末考试是三个小时的综合考试，内容将覆盖整个课程。