没有一个国家得分比美国还低吗？

No country scored below the U.S.?

youdao

澳大利亚的成功故事不仅仅是简单的复制技术性修正，到目前为止还没有一个国家复制了它包罗万象的系统。

Australia's success story is about more than easily copied technological fixes, and up to now no nation has replicated its all-encompassing system.

youdao

今天，没有一个国家是一个孤岛。

Today, no nation is an island.

youdao

None of you got smallpox vaccinations, because once a country was certified to be smallpox free, there was no reason to-- there was no reason to vaccinate people any longer.

你们当中没人接种过天花疫苗,因为一旦一个国家确认不再有天花,就没有理由,就没有理由再给人们接种

耶鲁公开课 - 生物医学工程探索课程节选