UNICEF's head in Ziguinchor, Christina de Bruin, says systems for child protection need to be improved, along with encouraging social change in how people deal with this violence, and reinforcing partnerships and protection systems to deal with emergency cases.

VOA: standard.2010.06.29

One of my favorite stories is, William Ruckelshaus, William Ruckelshaus who was head of the Environmental Protection Agency in the early 1970s.

我最喜欢的一个故事，是讲,他是20世纪70年代时候的,环境保护机构的会长。

麻省理工公开课 - 计算机科学及编程导论课程节选

One of my favorite stories is, William Ruckelshaus, William Ruckelshaus who was head of the Environmental Protection Agency in the early 1970s.

我最喜欢的一个故事，是讲,他是20世纪70年代时候的,环境保护机构的会长。

麻省理工公开课 - 计算机科学及编程导论课程节选