1、disappear
(通常指因位置改变而)消失,不见
The black car drove away from them and disappeared.
那辆黑色轿车驶离了他们的视线
。Clive disappeared into a room by himself.
克莱夫独自一人进了屋
。消失;失踪
a Japanese woman who disappeared thirteen years ago.
一个 13 年前失踪的日本女人
Janet's husband and sister noticed that small kitchen objects were disappearing with increasing regularity.
珍妮特的丈夫和她的姐姐发现厨房里的小物件经常不翼而飞,而且次数愈发频繁
。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
。