There are five nations recognized under the NPT, the Nuclear Non-Proliferation Treaty.

有5个国家遵守NPT, 即《不扩散核武器条约》。

These five nations were reported to have made up nearly half of all cases worldwide.

据报道，这5个国家的麻疹病例占全球的近50%。

And that's one of the five nations that President Trump is visiting on a 12-day trip to Asia that begins this weekend.

特朗普总统从这周开始进行对亚洲5个国家为其12天的访问，菲律宾就在其中。

It was like the United Nations of astronomy here. People from five nations here.

这里就像天文学的联合国。来自五个国家的人在这里。