The national security challenge comes at a difficult time for Mr.Obama, who later this month will mark his first year in office.

VOA: standard.2010.01.06

But here I have the opportunities to someone something, and then you see them act upon it in a month's later, a year's later.

但我能有机会去帮助别人，并看到他们能因此在一个月后,甚至一年后，收到效果，作出改变。

普林斯顿公开课 - 人性课程节选

But here I have the opportunities to someone something, and then you see them act upon it in a month's later, a year's later.

但我能有机会去帮助别人，并看到他们能因此在一个月后,甚至一年后，收到效果，作出改变。

普林斯顿公开课 - 人性课程节选