Then there's a percentage of time where they do need Dak and he doesn't perform.

然后有一定比例的时间他们确实需要达克，但他却表现不佳。

This is a particular concern for children and young people, who spend a higher percentage of time using electronic gadgets.

这是儿童和年轻人特别关心的问题，他们使用电子产品的时间比例更高。

So there's this percentage of time that they don't need Dak because the running game and the defense is enough.

所以有一定比例的时间他们不需要达克，因为跑动和防守就足够了。

Then there's a percentage of time where they need Dak and he does perform and you're happy you started him.

然后有一定比例的时间他们需要达克，他确实表现出色，你很高兴你开始了他。