这位中国明星继续提高她的比赛技巧和增加积分，所以到2009年底，由于她在大满贯赛事中突破性的表现，已经成功进入前20强。

The Chinese star continued to improve her game and build her points, so by the end of 2009, she was well inside the top 20, thanks to her breakthrough performance in Grand Slam events.

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莱斯特大学研究人员的该项突破性进展导致该药问世前就阻碍了跟压力有关的情况。

The breakthrough by researchers at Leicester University could lead to pills that quash such stress-related conditions before they arise.

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30年期国库券的收益率年底前可能会轻松突破4 %。

Yields on 30-year Treasuries easily could top 4% by year end.

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For example, in the late 1990s, if you were to ask a question--I'm hypothesizing -how likely is it that the Dow will be over 10,000 by the year 2008?

例如,在90年代末,假如有人问你这样一个问题,道指在2008年底前,突破万点大关的可能性有多大

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