1）使用《牛津英语搭配词典》查“parallel”，了解它的常用搭配。   

have no parallel (also be without parallel) ■If something has no parallel or is without parallel, there is nothing similar to it or of the same high quality as it 无可匹敌

These beautiful African churches have no parallel in Europe.欧洲没有哪座教堂能与这些漂亮的非洲教堂相比。

in 'parallel (with sth / sb) ■with and at the same time as sth / sb else  (与…)同时:

The new degree and the existing certificate courses would run in parallel. 新的学位课程和现有的证书课程将同时开设。

2）翻译下面的句子：     

这本书主要写的是传统出版业和数字出版业之间有趣的相似性。   

The book draws interesting parallels between traditional publishing and digital publishing.

（参考翻译：The book draws interesting parallels between traditional publishing and digital publishing. 或者 The book examines interesting parallels between traditional publishing and digital publishing.）     

3）结合自己的生活、学习、工作、兴趣等，想象在什么语境下会用到这个表达。先简要描述这个场景，再造句。   

场景：将该国的历史与其最大城市的历史作比较，很容易就会发现两者的相似之处。 

造句：It would be easy to draw (= make) a parallel between the country's history and that of its the largest city.