Africa faces daunting challenges in improving its infrastructure.

非洲面临着改善基础设施的严峻挑战。

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Mr. Lewis confronts daunting challenges, and many of his investors are losing patience.

刘易斯面临着严峻的挑战，同时他的许多投资者正在失去耐心。

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And even if they went too, the Arab world's poorest country would face daunting challenges.

而且，即使他们也离去了，这个阿拉伯世界最贫穷的国家也将面临着严峻的挑战。

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It sounds easy, but senior engineer Gwak Byung-man admits there are daunting technical challenges.

VOA: standard.2010.01.04

Risley says the challenges remain daunting, although there are hopes the fighting may be over before winter, when the refugees' needs will increase sharply, and weather hampers aid deliveries.

VOA: standard.2009.06.19

Even with these strides, Belize faces daunting challenges in managing the developmental and environmental impact of tourism.

BBC: Belize��s lessons in eco-tourism

Currently pundits are obsessed with the problems, the daunting challenges that face us.

FORBES: The Wilsonian UN--R.I.P

The prime minister has identified one of Malaysia's most daunting challenges: how to practice Islam in a modern world.

CNN: Mahathir's Worldly Concerns