这位阿森纳门将本赛季确定自己在俱乐部1号门将位置，在国家队里，他正在和博鲁克、法比安斯基竞争同一位置。

The Arsenal goalkeeper has established himself as his club's No 1 this season and is challenging Artur Boruc and clubmate Lukasz Fabianski for the same spot in his national side.

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不过，据英国阿伯丁皇家学院大卫•乔利和一个研究小组认为，乌克兰博提施撞击地球事件比之前的墨西哥希克苏鲁伯撞击事件要晚5,000年。

But according to David Jolley of King's College in Abaerdeen, U.K. and a team of researchers, Bolytsh slammed into the planet less than 5, 000 years before the giant Chicxulub impact in Mexico.

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而上述博提施和希克苏伯鲁两次撞击是如此可疑地接近，暗示了这样一种假设——太阳系发生过几次巨大的碰撞，其中一些散射的宇宙岩石飞向了我们的星球。

But they're still suspiciously close together, suggesting that perhaps some great collision in the solar system sent a scatter-shot of space rocks headed our way.

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We've got Lynette, Lukucin, we've Kristin, Bargeon; there's nine of you here. Let's try it again.

利奈特,鲁克森,克里丝汀,博贞,有九个人,再举下手示意一下

耶鲁公开课 - 博弈论课程节选