Accumulations:
1.disparity:a difference between two or more things, especially an unfair one
原文：The researchers （who carried out the study） speculated （that this disparity was because of the different contexts in which the learning took place）.
造句：There are plenty of disparity between any two people.
2.slapdash: careless and done too quickly
原文：Whatever methods there are seem slapdash and produce unpredictable results
造句：We should try to avoid slapdash action.
3.at the front of your mind:: 在你的脑海里
原文：keep this one thing at the front of your mind
造句：Keep this principle, " Safety first", at the front of your mind.
My thought:
昨天有事耽搁了，今天把Chapter4读完了，说实话，这本书读到这里，已经远远没有读第一章时的经验，正如群主Eric所说的，写的略显啰嗦了些。大量篇章重复了前面章节所提到的刻意练习中需要及时得到反馈，刻意练习并不是naive practice等。THE PRINCIPLES OF DELIBERATE PRACTICE这一小节按理说是前面四章的精华所在，但是阅读到此处，远远没有当时读seven habbit of effective people时章节末类似小结给人的感觉。而APPLYING THE PRINCIPLES OF DELIBERATE PRACTICE和NO, THE TEN-THOUSAND-HOUR RULE ISN’T REALLY A RULE这两小结给人的感觉也比较冗余，或许一个段落就能讲清。
以上是个人的见解，不一定对，或许也是我没有真正读懂造成的。
