chal·lenge 1 S2 W2 AC / tʃæləndʒ, tʃælɪndʒ / 名词 #

1 something difficult [可数和不可数名词] something that tests strength, skill, or ability, especially in a way that is interesting

challenge of

The company is ready to meet the challenges of the next few years.

the challenge of doing something

I relish the challenge of rebuilding the club.

face/take on/accept etc a challenge (= be ready to deal with one )

Martins now faces the biggest challenge of his career.

meet a challenge/rise to a challenge (= successfully deal with one )

a new and vibrant initiative to meet the challenge of the 21st century

intellectual/physical challenge

the intellectual challenge of postgraduate research

2 question something [可数名词] when someone refuses to accept that someone or something is right and legal

challenge to

a direct challenge to the Governor’s authority

challenge from

The President faces a strong challenge from nationalists.

pose/represent/present a challenge (to somebody)

The strike represented a serious challenge to the government.

mount/launch a challenge

They decided to mount a legal challenge to the decision.

3 competition [可数名词] when someone tries to win something or invites someone to try to beat them in a fight, competition etc

challenge for

They are ready to mount a challenge for the championship.

They threw down the challenge that he couldn’t wash 40 cars in one hour (= invited him to try to do it ) .

The Prime Minister narrowly avoided a leadership challenge last year.

4 stop [可数名词] a demand from someone such as a guard to stop and give proof of who you are, and an explanation of what you are doing

5 in law [可数名词] law a statement made before the start of a court case that a juror is not acceptable

COLLOCATIONS

动词

meet a challenge (= deal with one ) Here are a few tips to help you meet the challenges of university life.

face a challenge (= have to deal with one ) The company still faces some challenges.

accept a challenge (= try to deal with one ) He was ready to accept new challenges.

take on a challenge (= accept one ) The new headteacher has taken on the challenge of improving the school.

present/pose a challenge (= be a difficult one ) These changes pose a real challenge to farmers.

provide a challenge (= be an interesting one ) Her new job provided a real challenge.

rise to a challenge (= deal successfully with it ) It was a difficult project but we rose to the challenge.

love/enjoy/relish a challenge Children enjoy a challenge so the work should not be too easy.

形容词

a big/major/huge/tremendous challenge Building the tunnel presented a major challenge to engineers.

a serious challenge At the moment we are facing a serious environmental challenge.

a real challenge (= a difficult one ) On Monday, Sharapova faced her first real challenge of the tournament.

a formidable/daunting/tough challenge (= a very difficult one ) How to deal with waste is a daunting challenge for the west.

the biggest challenge of something This could be the biggest challenge of his career.

an intellectual/physical/technical etc challenge I love the physical challenge of climbing.

challenge S3 W3 AC verb [及物动词] #

1 question something to refuse to accept that something is right, fair, or legal :
a boy with a reputation for challenging the authority of his teachers challenge a view/an idea/an assumption etc Viewpoints such as these are strongly challenged by environmentalists. They went to the High Court to challenge the decision . challenge somebody to do something I challenge Dr. Carver to deny his involvement! 2 competition to invite someone to compete or fight against you, or to try to win something → challenger , dare challenge somebody to something After lunch, Carey challenged me to a game of tennis. challenge for Liverpool are challenging for the title (= in a position where they could win ) . 3 something difficult to test the skills or abilities of someone or something SYN stimulate :
I’m really at my best when I’m challenged. challenge somebody to do something Every teacher ought to be challenging kids to think about current issues. 4 stop somebody to stop someone and demand proof of who they are, and an explanation of what they are doing :
We were challenged by the security guard at the gate. 5 in law law to state before the start of a court case that a juror is not acceptable

— challenger noun [可数名词] :
Lewis is his main challenger for the world title.