与2008年相比，2009年的所有销量中，排名前20的游戏所占份额更大。 这一现象表示，游戏业和电影业一样，越来越呈现出热门作品和败笔作品的两极化。
The top 20 games took a larger share of sales in 2009 than in 2008, which shows that the games industry, like the film industry, is becoming increasingly polarised between hits and misses.
这个星系在60到90亿年前被银河系吞噬，这种现象被称为星系同类相食。
This galaxy was gobbled up by the Milky Way between six and nine billion years ago in an act of intergalactic cannibalism.
该方法涉及从血浆中固相提取胰岛素，以及用荧光胺对胰岛素进行柱前衍生。
The method involved solid-phase extraction of insulin from plasma and pre-column derivatization of insulin with fluorescamine.
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