text 2
体系闪现365字，如同短一点。通读了一遍，感触不算

难，有单个词汇不知道的，但如同也不太影响了解，看看标题吧。
more americans are opting to work well into retirement, a growing trend that threatens to upend?the old workforce model.
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ps. opt to do sth.恰当于choose to do sth.； upend?sth.:turn sth. upside down倒置。
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