A team of four was sent to scout for a nuclear test site.

一个四人小组被派去寻找核试验基地。

《柯林斯英汉双解大词典》

A nuclear test?

核试验？

youdao

Ominously, there is new activity, too, at a site used in 2006 for a nuclear test.

更糟的是在2006年进行核试验的地点还有一个新的活跃的试验。

youdao

The isolated country is also under pressure because of United Nations sanctions imposed after Pyongyang conducted a nuclear test a year ago.

VOA: standard.2010.05.03

They and the European Union say it will violate a U.N.resolution imposed after North Korea conducted at 2006 nuclear weapons test.

VOA: standard.2009.04.01

The Security Council resolution was put in place after North Korea' first nuclear weapons test and the launch of a ballistic missile.

VOA: standard.2009.04.03

President Bush calls for a decisive United Nations response to North Korea's claims of a nuclear test.

NPR: Bush Urges Decisive Response to North Korea Test

If it's proven that they have in fact conducted a nuclear test, does that really change the situation?

NPR: Diplomat Offers Analysis of North Korea Test

This treaty is so ineffective it doesn't even have a practical definition of what constitutes a nuclear test.

CENTERFORSECURITYPOLICY: Center For Security Policy