an independent US government organization that works to provide help for poor countries. It was established in 1961 by President John F Kennedy and gives financial, technical and medical help. 美国国际开发署:美国的一个独立的政府组织,致力于为贫困国家提供帮助。它由总统约翰·肯尼迪(John F Kennedy)于1961年成立,并提供财务,技术和医疗帮助。