summary book

例句：

1. 1. The author'ssummary of the book is very concise.
   作者对这本书的总结非常简洁。
2. 2.The teacher gave a summary of the lessonbefore moving on to the next one.
   老师在继续下一个课程之前，先总结了这节课的内容。
3. 3. Thesummary of the meeting wasthat we needed to improve ourcommunication skills.
   会议总结是我们需要提高沟通技巧。