他们想知道，Twitter的用户们实际上到底有多少联系。
What they wanted to know was this: How many real connections do Twitter users have?
他说：“我们仍在探究事情的本质，俄罗斯实际上到底想提议做什么。”
'We're still examining what it is that they [Russia] are in effect proposing to do.
为了更好地了解，实际上到底有多少具有潜在危险的小行星，迈因策尔和她的同事们，最近使用了在2009年升空的WISE望远镜，进行了一次最新的调查。
To get a better sense of how many potentially dangerous asteroids might actually be out there, Mainzer and her colleagues did a new survey with the WISE telescope, launched in 2009.
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