1. 询问：如果WINS工作站请求登记的名字已经登记的话,则WINS服务器便会向拥有该名字的工作站发送一个询问(Challenge)信息. 如果WINS服务器收到拥有该名字的工作站的回答的话,WINS服务器将不会接受WINS工作站的注册请求,并给它发送一个Negative信号.
2. 难题：在项目内容上,中心更多关注企业在红海竞争中的创新发展难题(Challenge),并通过创新激励中心的资源优势,带动全中国乃至全世界的行业人才帮助企业解决这些问题,项目激励报酬预定在5000RMB至50万RMB之间.创新激励中心作为第三方,
3. challenge
3. 问题：用户代理在解析WWW-授权域值时要特别注意看看它是否包含一个以上的待解决问题(challenge)或是否提供了一个以上的WWW-授权标题域,因为待解决问题(challenge)的内容中可能包含用逗号分隔的授权参数列表.
4. challenge：chal; 质问，应答
1. 挑战;难题
A challenge is something new and difficult which requires great effort and determination.
e.g. 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。
e.g. 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。
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.
challenge
e.g. 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。
e.g. 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。
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.
e.g. The demonstrators have now made a direct challenge to the authority of the government.
示威者现在直接对政府的权威发出了质疑。
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.
e.g. 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。
e.g. 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。
5. 挑战；向…下战书
If you challenge someone, you invite them to fight or compete with you in some way.
e.g. A mum slashed a neighbour's car tyre and challenged her to a fight after their daughters fell out...
两家的女儿吵起来后，一个妈妈划破了邻居的车胎，说要和她较量较量。
e.g. He left a note at the scene of the crime, challenging detectives to catch him...
他在犯罪现场留了个条儿，向警探挑衅。
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.
e.g. The men apparently opened fire after they were challenged by a patrol.
显然，那些人是在受到一支巡逻队的盘问后开的火。
7. see also: challenged
see also: challenging
词典解释
1. 挑战;难题
A challenge is something new and difficult which requires great effort and determination.
e.g. 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。
e.g. 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。
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.
challenge
e.g. 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。
e.g. 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。
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.
e.g. The demonstrators have now made a direct challenge to the authority of the government.
示威者现在直接对政府的权威发出了质疑。
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.
e.g. 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。
e.g. 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。
5. 挑战；向…下战书
If you challenge someone, you invite them to fight or compete with you in some way.
e.g. A mum slashed a neighbour's car tyre and challenged her to a fight after their daughters fell out...
两家的女儿吵起来后，一个妈妈划破了邻居的车胎，说要和她较量较量。
e.g. He left a note at the scene of the crime, challenging detectives to catch him...
他在犯罪现场留了个条儿，向警探挑衅。
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.
e.g. The men apparently opened fire after they were challenged by a patrol.
显然，那些人是在受到一支巡逻队的盘问后开的火。
7. see also: challenged
see also: challenging