及物动词

名词

1. 挑战;难题
A challenge is something new and difficult which requires great effort and determination.

2. (成功地)应对挑战，迎接挑战
If someone rises to the challenge, they act in response to a difficult situation which is new to them and are successful.

3. (对真实性、价值、权威等提出的)怀疑，质疑
A challenge to something is a questioning of its truth or value. A challenge to someone is a questioning of their authority.

4. 怀疑，质疑(真实性、价值、权威等)
If you challenge ideas or people, you question their truth, value, or authority.

5. 挑战；向…下战书
If you challenge someone, you invite them to fight or compete with you in some way.

6. (警卫)盘问，查问
If someone is challenged by a guard, they are ordered to stop and say who they are or why they are there.

7. see also: challenged
see also: challenging

1. a demand by a sentry for a password or identification

2. questioning a statement and demanding an explanation

e.g. his challenge of the assumption that Japan is still our enemy

3. a formal objection to the selection of a particular person as a juror

4. a call to engage in a contest or fight

5. a demanding or stimulating situation

e.g. they reacted irrationally to the challenge of Russian power