According to the study, the previous impact was caused by a 1,640-foot-wide (500-meter-wide) asteroid.

根据研究来看，之前的撞击“肇事者”是一颗直径大约1640英尺(500米)的小行星。

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According to the study, the previous impact was caused by a 1, 640-foot-wide (500-meter-wide) asteroid.

根据研究来看，之前的撞击“肇事者”是一颗直径大约1640英尺(500米)的小行星。

youdao

According to background information in the study, previous research has suggested that treating large AVMs may increase hemorrhage risk.

根据研究的背景信息，以前的研究认为治疗大范围的动静脉畸形可能会增加出血的风险。

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Seven years ago, according to Pew's previous study, the unaffiliated formed about 16% of the population, mainline Protestants were about 18%, Catholics were about 24% and evangelicals 26.3%.

CNN: Millennials leaving church in droves, study says

In the previous year, according to the ORR study compiled by transport consultants Steer Davies Gleave, Teesside Airport had only 18 passengers, Dorking West had 22 and Denton had 52.

BBC: Airport rail station 'had only 14 passengers in year'

Among older Americans who pull up stakes, a "large majority" settle within 20 miles of their previous homes, according to a 2009 Boston College study.

WSJ: Why Downsizing Your House May Not Solve Your Retirement Problems