preread disturb pulse

例句：

1. 1. Before the final exam, I always preread my notes to get a better understanding of the material.
   在期末考试前，我总是提前阅读笔记，以便更好地理解材料。
2. 2. The teacher asked us to preread the text before class to prepare for discussion.
   老师要求我们在课前预读文本，为讨论做准备。
3. 3. Prereading the chapter thoroughly helped me understand the main points and structure better.
   彻底预读章节有助于我更好地理解主要观点和结构。