It is an enormous challenge but we hope to meet it within a year or 18 months.

A third presidential candidate emerged to mount a serious challenge and throw the campaign wide open.

第三位总统候选人的杀出对前两位构成了严峻挑战，并使得选举形势扑朔迷离。

Our challenge is to motivate those voters and inspire them to join our cause.

我们面临的挑战是如何调动那些选民的积极性并鼓励他们加入我们的事业。

The election of the new government was met by a challenge from its opponents.

新政府当选的合法性受到了反对派的挑战.

He had met the challenge and triumphed.

他迎接挑战并取得了胜利.

She looked at me with challenge.

她带着挑战的目光看着我.

My preference is that we ( should ) challenge the other groups to a friendly competition.

我喜欢向别的组挑战,来一个友谊竞赛.

No one could challenge her supremacy in gymnastics.

她是最优秀的体操运动员,无人能胜过她.

The challenge today is not merely to improve the material standards of living.

今天的要求不仅在于改进物质生活的标准.

It is a difficult task, but I'm sure he'll rise to the challenge.

这是个艰巨的任务, 不过我相信他能应付自如.

They appeared in court not to raise defences , but to challenge the court jurisdiction.

他们来法院不是应诉, 而是抗辩.

The job doesn't really challenge him.

这项工作不能真正地考验他.

It is important to challenge society's preconceptions about disabled people.

质疑社会对残疾人的成见极为重要.

It was a challenge, keeping ten boisterous seven-year-olds amused.

要逗着十个好动的七岁孩子玩真是一种挑战。

The President's most serious challenges lie ahead.

对总统来说最为严重的挑战还在后面。

It was ill-prepared to meet this challenge.

应对这一挑战明显准备不足。

This game had its challenges, excitements and rewards.

这款游戏有各种挑战、刺激和奖赏。

From now on, I'm gonna say yes--yes to love, yes to adventure, yes to life, whatever it maybe, the answer's going to be yes.

从今天起，我要积极接受一切，接受爱，迎接挑战，拥抱生活，不管什么事，我都会勇敢地去接受。

I'm ready to do all those things which are more challenging.

我愿意接受更大的挑战。

I called out a challenge, but there was no reply.

我提出挑战，但是没人回应。

He said he's game for a similar challenge next year.

他说他明年还愿意接受类似的挑战。