A lot of effort has gone into making this event a success.

为使这次活动成功费了很大的劲。

《牛津词典》

A number of problems marred the smooth running of this event.

许多问题破坏了该事件的顺利进行。

《柯林斯英汉双解大词典》

youdao

We leave you with a song by the Cuban saxophonist Paquito D'Rivera who is to perform at this event.

VOA: special.2009.04.17

And for Americans, all our democratic experience and do I have to put a tie on for this event or not?

美国人也如此,我们都参与民主政治,知道在什么场合需要系领带,比如现在

耶鲁公开课 - 美国内战与重建课程节选

So, sorry I don't know that much about this event for you.

很抱歉我不能给你提供这次活动的信息。

关于世界地球日 - SpeakingMax英语口语达人

And I think that those who are coming are supporters and friends for this event.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,

Thank you to Hofstra University and to Candy Crowley for organizing and leading this event.

WHITEHOUSE: The White House

The topics presented during this event ranged from live coding with Node.js to salary negotiations.

FORBES: Women Who Code Present 9 Tech Talks in San Francisco