提出了挑战用英语怎么写

It's a challenge

挑战───Challenge;提出───propose

It is an enormous challenge but we hope to meet it within a year or 18 months.───这是一个巨大的挑战，但是我们希望在1年或18个月之内能够战胜它。

He had met the challenge and triumphed.───他迎接挑战并取得了胜利.

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。

Although it would be a wrench, we would all accept the challenge of moving abroad.───虽然移居海外会很痛苦，但我们都愿意接受这个挑战。

Her challenge reduced them to silence.───她的质问让他们哑口无言。

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.

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.

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.

I'm ready for any challenge.

The weather presented a particular challenge, especially for American servicemen unaccustomed to subarctic conditions.

Schools must meet the challenge of new technology .

Liszt's piano music presents an enormous technical challenge.

I want to challenge,is naked game.