Approval switches the focus to the Senate, where Democrats face the difficult task of achieving a 60-seat majority to approve a version there.

VOA: standard.2009.11.08

Hobbes realizes this is a difficult and uphill task that he has set for himself.

霍布斯意识到他已经给自己,定下了一个困难而艰巨的任务。

耶鲁公开课 - 政治哲学导论课程节选

And that there's some pull towards the right answer that makes this task difficult.

还有正确答案上的一些干扰,让这个任务变得更加困难

耶鲁公开课 - 心理学导论课程节选

Speaking on a special British radio program, Scarlett said his officers face a difficult task.

VOA: standard.2009.08.10

His task also was difficult and complex.

VOA: special.2010.07.14

Mr.Obama says he knows Congressional politics will make the task more difficult, and he predicts opponents will wage a campaign to scare the public.

VOA: standard.2009.05.21