Following the doubles, there will be two further singles matches; those involved being the player who competed only in the doubles and the player who did not participate in the doubles.

双打之后为另两盘单打，参加的运动员中应有一名只打过双打而另一名没有打过双打。

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The number of students who enjoy reading English news doubles that of those who prefer reading stories.

喜欢读英语新闻的学生人数是喜欢阅读故事的学生人数的两倍。

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The distributor in turn doubles its price in selling to the retailer, who doubles the price once again to the consumer.

FORBES: Time Is Money

Its current holder, Romano Prodi (who doubles up as Italy's main opposition leader), has largely disappointed, however.

ECONOMIST: The summit of all fears | The

Zaher proved a wise substitution by Mohamed Abdallah, who doubles as national coach, scoring just three minutes after replacing veteran striker Haytham Tambal at Gwanzura Stadium.

BBC: CS Sfaxien stunned in Confed Cup