Since there can be only one un-caught handler per process active at a time, the constructor should be invoked only once; hence, the reason for the singleton pattern.

因为每次只能有一个未捕获的处理程序处理一个活动进程，构造函数应该只被调用一次，因此要采用 singleton 模式。

youdao

The UN was a worthy organization, one bringing everyone closer together.

联合国是一个值得敬重的组织，一个让每个人更加亲密的组织。

youdao

According to the UN, more than one third of all food produced worldwide goes to waste each year.

根据联合国的数据，每年全世界生产的食物中有超过三分之一被浪费。

youdao

And once again, its about the journey. Its about locality. So we want people to pinpoint where they are now and to tell a story related to their own immigrant experience. One woman in Indianapolis,Indiana wrote about feeling very un-American while celebrating the Thanksgiving holiday with her parents.

VOA: special.2010.03.03

These sessions will be co-led by a tandem of one UN-organization and one Dutch organization.

UNESCO: World Water Day on Water Cooperation

An outcome document is expected to come out of the conference highlighting the way forward of the Delivering as One UN approach.

UNESCO: Stakeholders around the globe discuss United Nations reform | United Nations Educational, Scientific and Cultural Organization

Armed rebels from Uganda's notorious Lords Resistant Army have attacked several Southern villages in recent weeks, including at least one UN compound.

NPR: Wesley Clark: Why We Should Care About Darfur