And we know that answer because of the extraordinary work of an incredible group of NGOs, of governments, of local leaders, of U.N. agencies and many humanitarian and other organizations that came and joined the fight to try and stop Ebola in West Africa.
而我们之所以知道答案， 就是因为一群人的杰出努力， 包括一群了不起的非政府组织， 一群政府，当地领袖， 联合国机构，以及 许多人道主义组织， 他们前来加入了阻止 埃博拉在西非扩散的抗争中。