The source materials for the original course did not include lab exercises or assessments.
原来的课程材料不包含实验练习或测验。
The river departed from its original course several miles downstream.
这条河往下流了几英里后改变了流向。
Dates refer to the original course, but are included here just to show timing and class order.
日期指原本的课程，但在这里则是显示时间及课堂顺序。
Dates refer to the original course, but are included here just to show timing and class order.
日期指原本的课程，但在这里则是显示时间及课堂顺序。
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