当你的老师在你的第一堂实验课前阅读和解释规则时，请仔细听。
Listen carefully when your teacher reads and explains the rules before your first lab lesson.
课前阅读可以让你熟悉书本的主旨以及书本的框架。
Pre-reading will help you to become familiar with the book's main ideas and general structure.
玛丽清楚的知道她应该在每次上课前阅读布置的作业。
Mary knows very well she should read an assignment before every lecture.
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