Lighting up fireworks is a cause for celebration of the Spring Festival.

燃放烟花是庆祝春节的原因之一。

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Another team might want to work very hard but also have time for fun and celebration of their successes.

另一个团队可能希望非常努力地工作，但也要有娱乐的时间，并且在成功后要有庆祝活动。

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"For many reasons, the celebration of Halloween at school can lead to student exclusion," Principal Brian Anderson wrote in a letter to parents.

校长布莱恩·安德森在写给家长的信中说：“出于多种原因，学校的万圣节庆祝会导致某些学生被孤立。”

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He produced them for the opening celebration of the new entrance to the Vatican Museums in two thousand.

VOA: special.2010.02.03

Then Mr.Obama heads to the French-German border for a celebration of the 60th anniversary of the North Atlantic Treaty Organization, or NATO.

VOA: standard.2009.03.31

After an interval for celebration of yesterday's accomplishment, it will be back to politics as usual.

CNN: Now, stop questioning Obama's legitimacy

That hardly seems a cause for celebration of self-congratulation.

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At the end of the meeting the Director-General paid a visit to the Director of the State Hermitage Museum, Mr. Mikhail Piotrovsky on further strengthening the ongoing cooperation between the Museum and UNESCO for the celebration of the 250th anniversary of the Museum in 2013, as well as for regional capacity-building of museum professionals in Commonwealth of Independent States (CIS).

UNESCO: Building the Wealth of Nations