The first 10 correct entries drawn out of the hat will win a pair of tickets, worth $30 each.
任意抽取的前10名符合要求的入围者将赢得两张入场券,每张价值$30。
With a data set of 10 rows and three clusters, that could take 30 minutes to work out using a spreadsheet.
对于一个具有 10 行和三个群集的数据集,若使用电子数据表,需要花上 30 分钟才能完成。
I would say out of a class of 30, maybe 10 or less... have a computer at home.
我想说,在学校之外,每30人,也许10人,甚至更少的人在家里拥有电脑。
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