1、challenge

挑战;难题

I like a big challenge and they don't come much bigger than this.

我喜欢大的挑战，而所有挑战中再没有比这更大的了。

The new government's first challenge is the economy.

新政府面临的第一个难题是经济问题。

(成功地)应对挑战，迎接挑战

The new Germany must rise to the challenge of its enhanced responsibilities.

一个崭新的德国必须迎接挑战，承担更多的责任。

They rose to the challenge of entertaining 80 schoolchildren for an afternoon.

他们一个下午成功接待了80名学童。

怀疑，质疑(真实性、价值、权威等)

Democratic leaders have challenged the president to sign the bill.

民主党领袖对总统签署这项法案提出了质疑。

The move was immediately challenged by two of the republics.

此项动议立即遭到其中两个共和国的反对。

2、move on

离去;继续前进

Mr Brooke moved on from Paris to Belgrade.

布鲁克先生离开巴黎，继续前往贝尔格莱德。

What's wrong with his wanting to sell his land and move on?

他想卖掉土地离开这里，这有什么错呢？

(结束某活动后) 改做别事

She ran this shop for ten years before deciding to move on to fresh challenges.

在决定涉足新的领域时，她经营这家商店已有10年。

His mother, Julia, soon moved on to a new relationship.

他妈妈朱莉娅很快又开始了一段新恋情。

命令…(或不要停留走开)

Eventually the police were called to move them on.

终于有人叫来警察驱散他们。