Women have become more assertive in the past decade.

妇女在过去十年已变得更坚定自信。

《柯林斯英汉双解大词典》

While the Disc Depot's owners have apparently become wealthy enough to retire, profits at Carlo's Clothing have remained stagnant for the past three years.

虽然 Disc Depot 的所有者显然已经足够富有，可以退休了，但是 Carlo's Clothing 的利润在过去三年中一直停滞不前。

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Backpacks have become common and popular among students in the past 30 years.

在过去的30年里，背包在学生中变得普遍和流行。

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The scenes of striking workers at factory gates have become a regular sight in the past month.

VOA: standard.2010.06.24

Detroit prices have been in decline for more than three years, yet based on the NAHB index, Motown's homes have become less affordable over the past year as incomes have dropped due to job loss, and because the low-end market has become so unappealing to buyers that it's been more or less abandoned.

FORBES: Increasingly Affordable U.S. Housing Markets

Yet given the cash hoarding Scrooges corporations have become over the past two years, it speaks volumes that these very same firms (and the individuals running them) now think the best use of their hard earned cash is in repurchasing their own stock.

FORBES: Money Where Your Mouth Is

And surveys suggest that Poles in most age groups have become steadily more satisfied with life over the past ten years even as they have become increasingly disenchanted with their governments.

ECONOMIST: One more push