你可能会发现一些文章比其它文章容易理解，但所有的文章都被设计成具有挑战性。
You may find some passages easier to understand than others, but all passages are designed to present a challenge.
暑期阅读的文章应该是容易理解的，所以一定要选择符合孩子阅读水平的文章。
Articles for summer reading should be accessible, so be sure to choose articles at your child's reading level.
为了使这篇文章中的概念联系更紧密以及更容易理解，本文使用了下面的样例应用软件，它是利用DB 2来存储和检索它的数据的。
To make the concepts in this article more relevant and easy to comprehend, it USES the following sample application that USES DB2 to store and retrieve its data.
应用推荐