Why do you think countries and cities compete to host mega events? How have these big events changed the host cities?

那么举办如此大规模的活动能够给这些国家和城市带来了什么样的回报和变化？

youdao

By far the majority of studies on the impacts of mega events are related to the economic impacts of mega sporting events.

到目前为止，大多数大型活动影响的研究上都与大型体育赛事的经济影响。

youdao

Volunteers recruitment started in 1992 for the Barcelona Olympics. With the ever-growing scale and dimensions of the Olympic Games, volunteers are now considered to be "mega events".

志愿者的招募始于1992年巴塞罗那奥运会，随着奥运会规模的日益增大，志愿者已被看成是每届奥运会的大事。

youdao

Mega sporting events such as the Olympics and World Cup attract thousands of foreign visitors.

VOA: standard.2010.05.29

HBO, for its part, is trying to undo the dilutive effect it caused by framing too many fringe fights as mega events worthy of pay-per-view status, only to see them flop.

FORBES: Boxing

This Commission will also look at guidelines to reduce negative social and environmental consequences of organizing mega events such as the Olympic Games, the Football World Cup or regional final competitions.

UNESCO: Social and Human Sciences

And while Facebook already has an events feature, UpTo says that the tool is used predominantly for rare mega events or for spamming all your contacts, not for making more casual plans.

FORBES: Startup UpTo Wants To Make Your Calendar Social