In Figure 3, our third example is where the query result is limited to top-N elements.

在图3中是我们的第三个例子，其中，查询结果被限制在头n个元素。

youdao

This week,U.N.Secretary-General Ban Ki-moon sent his top aide to press for an end to the Sri Lankan conflict.

VOA: special.2009.05.16

Friday, the top U.N. human rights official called for an independent investigation into possible war crimes by both sides in the conflict.

VOA: special.2009.01.10

The U.N.top climate official, Yvo de Boer reminded delegates they have their work cut out.

VOA: standard.2009.12.09

He said he has sent senior advisers and other top U.N. officials to head to Algiers to assist in the investigation and rescue effort.

CNN: Rescuers search for bomb survivors

"Last year ... 4 million people worldwide lost their homes, out of which you have half a million displaced in Pakistan, " said Manuel Bessler, a top U.N. official in Islamabad.

CNN: Displaced Pakistanis crowd camps as they flee fighting

Eric Mouillefarine is the top U.N. humanitarian official here.

NPR: Succession Of Storms Cripples Haiti