| 1. | The bangladesh rural advancement committee ( brac ) , a nongovernmental organization of which i am a deputy executive director , has , however , been working since 1997 to find an answer to the arsenic dilemma
不过，由笔者担任副执行长的非政府组织孟加拉乡村进步委员会（ brac ） ，从1997年便开始致力于解答砷的难题。 |
