一些生物学基础使他们容易理解。

Some biology basics make them easy to understand.

youdao

然而，人们经常发现做一件家具并不容易，因为他们不能理解说明。

However, people often find it not easy to build a piece of furniture because they can't understand the instructions.

youdao

但这也是它的优势：读者很容易去理解，如果他们愿意的话，也可以为自己的学校做计算题。

But that is also its strength: it's easy for readers to understand, and to do the arithmetic for their own schools if they'd like.

youdao

So, I will be talking about the overhand stroke, which I find it easier to grasp.

所以我还是假设他们的攻击方式,是自上而下的吧,这样比较容易理解

耶鲁公开课 - 古希腊历史简介课程节选