This hall is used on great occasions, such as a big dinner, or a ball.

这个大厅在重要场合使用，如大型宴会或者舞会。

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His excellent performances on several occasions such as group discussions and open debate really took me by great surprise.

他在比如分组讨论和公开辩论数个场合上的极佳表现确实让我暗自称奇。

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He has said on numerous occasions that he is going to Beijing to support America's athletes and see some great competition.

他在很多场合说过，他将去北京给美国运动员加油打气，并观看一些精彩的比赛。

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Benitez's side showed great organisation, catching Juventus offside on numerous occasions, but the forward pairing of Baros and Luis Garcia got little joy from the Juventus rearguard.

BBC: Liverpool win 2-1 on aggregate

On rare occasions, the presidency has moments of great power.

ECONOMIST: Politics in India

Look, we have -- you heard me say on a number of occasions that one of the great benefits of the agreement was taking the politics out of unemployment insurance.

WHITEHOUSE: Press Briefing