1、believe
相信;认为
Experts believe that the coming drought will be extensive.
专家们认为即将发生的旱灾将侵袭大片地区。
I believe you have something of mine.
我想你拿了我什么东西。
相信(某人或某人的话)
He did not sound as if he believed her.
他听起来似乎并不相信她。
Never believe anything a married man says about his wife.
永远不要相信一个已婚男人说的任何有关他妻子的话。
认为…是应该的(或正确的)
He believed in marital fidelity.
他认为婚内应该忠诚。
decent candidates who believed in democracy.
信奉民主政治的正派候选人
2、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。