Having recently waited in line at the Apple Store to buy an iPhone, he found himself comparing the two products. Glasses had been a staple of human life for nearly a thousand years, and they’d hardly changed since his grandfather wore them. For the first time, Dave wondered why glasses had such a hefty price tag. Why did such a fundamentally simple product cost more than a complex smartphone?
1.find oneself doing sth：不知不觉开始做起某事，to be in a particular state or do a particular thing, or to realize that this is happening, especially when you did not expect or intend it.
例句：She tried to concentrate, but found her mind drifting back to Alex. 她想集中精神，但是发觉自己的思绪又飘回到了亚历克斯身上。
2.staple：作形容词表示主要的，重要的，forming the greatest or most important part of something，可以与main等词做替换，这里的a staple省略了thing。
例句：Oil is Nigeria’s staple export. 石油是尼日利亚的主要出口产品。
3.hefty：大量的，巨额的，a hefty amount of something, especially money, is very large.
可以说：a hefty fine
4.fundamentally：in every way that is important or basic 根本上；基本上。可以与completely做同义替换。
例句：The conclusions of the report are fundamentally wrong . 这份报告的结论从根本上来说就是错误的。
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