The president's initiative will add further pressure to the already over-extended HIV treatment program.

VOA: standard.2009.12.02

Right, leading trips everywhere from 7 days to 78 days, and so it was an extended wilderness tracking program.

的确，我需要带领学生们远足，时间由7天到78天不等，这是一个长时间探寻野外的项目。

普林斯顿公开课 - 人性课程节选

Right, leading trips everywhere from 7 days to 78 days, and so it was an extended wilderness tracking program.

的确，我需要带领学生们远足，时间由7天到78天不等，这是一个长时间探寻野外的项目。

普林斯顿公开课 - 人性课程节选