By fifth grade, children with early attention difficulties had lower grades and reading achievement scores than their peers.

到五年级时，有早期注意力障碍的儿童的学习成绩和阅读能力均低于同龄人。

If you go off-task, this mostly  hurts your task achievement score.

如果您离题，这最伤 您的task成就评分。

Lower reading achievement scores and grades in fifth grade contributed to reduced grades in middle school and thereby contributed to a 40% lower high school graduation rate.

五年级的阅读成绩和学分成绩较低导致初中的成绩不好，因此高中毕业率也会低 40%。

It's also the most common, because it's difficult and there's a lot for you to do in order to get your task achievement score to the highest that it can be.

而且这是最常见的，因为它很难，而且为了使你的任务完成分数尽可能达到最高，你需要做很多事情。