Following some relief in Washington that Pyongyang's missile launch proved a failure, the threat to abandon the talks presents a formidable challenge to Obama.
平壤导弹发射被证实失败后,华盛顿方面多少有些宽慰,然而,随之而来的放弃会谈的威胁,却是献给奥巴马的一个难以应对的挑战。
Many analysts feel that if he does decide to contest the election, General Fonseka will pose a formidable challenge to Mr Rajapaksa.
许多分析人士认为如果方塞卡将军确实决定参加此次竞选,那么他将对拉贾·帕克萨总统产生难以克服的巨大挑战。
The scale and ingenuity of the trade in counterfeits poses a formidable challenge to enforcement.
假冒药品贸易的规模和精巧程度对执法造成了巨大挑战。
However, even if the pilot schemes for the bonds do well, it will be a formidable challenge to scale them up to account for a significant portion of state spending on social services.
但是,即便这类债券的试验方案表现不俗,而要让它们形成规模,以至占政府公共服务支出中重要一笔,却是一项难以成功的挑战。
The provision of safe water and sanitation is a formidable challenge but remains the critical factor in reducing the impact of cholera.
提供安全饮用水并做到环境卫生是一项艰巨挑战,但仍然是减少霍乱影响的关键因素。
The surveys suggested that he also could pose a formidable challenge to incumbent French President Nicolas Sarkozy in the 2012 election.
这项调查还显示他也对现任法国总统萨科齐在2012年的竞选中造成巨大的挑战。
The total re-structuring of your planet and the formation of a society based upon freedom of choice, is a formidable challenge but we are well equipped to achieve that in the time frame given.
全面的重整你们的星球,并且形成新的社会基础,这是个艰巨的挑战,但是,我们具备着良好的条件,在预定时间内完成这个目标。
In a world full of misinformation it is a formidable challenge for the students to learn to identify the true, the beautiful, and the good.
着错误信息的世界,让学生学会识别真的、美的、好的信息是一个巨大的挑战。