[ 复数 challenges 第三人称单数 challenges 现在分词 challenging 过去式 challenged 过去分词 challenged ]
These features challenge the pricing of information goods.
信息产品的这些特性给其定价提出了挑战。
参考来源 - 信息产品的定价研究These changes make policy banks face a new challenge.
这些改变,使政策性银行面临着新的挑战。
参考来源 - 我国政策性银行立法研究Secondly,challenge initiation should be improved.
其次,完善刑事回避的启动程序。
参考来源 - 刑事回避制度研究None I-Il antibody were detected in the control or fowlpox virus immunized chickens before or after immunization or challenge.
对照组鸡免疫和攻毒前后无HI抗体检出。
参考来源 - 表达禽流感病毒HA基因重组禽痘病毒的构建及其免疫效力的研究It studies the most important characteristic of the postmodern-the challenge to totalizing and universalizing truths.
首先揭示后现代最基本的特征―对无所不包，无所不适的真理的质疑。
参考来源 - 论品钦《葡萄园》中对元话语的怀疑The control mice received saline injection and intranasal challenge instead of the OVA solution.
对照组因每组致敏、激发时间采用生理盐水进行致敏和激发。
参考来源 - 嗜酸粒细胞性支气管炎与支气管哮喘气道炎症特征的比较及相互关系探讨·2,447,543篇论文数据，部分数据来源于NoteExpress
"they reacted irrationally to the challenge of Russian power"
"his challenge of the assumption that Japan is still our enemy"
"She challenged his claims"
"Fischer challenged Spassky to a match"
"The illegal immigrant was challenged by the border guard"
同义词： take exception
以上来源于: WordNet
N-VAR A challenge is something new and difficult which requires great effort and determination. 挑战
The new government's first challenge is the economy.
新政府面临的第一项挑战是经济。
N-VAR A challenge to something is a questioning of its truth or value. A challenge to someone is a questioning of their authority. 质疑
The demonstrators have now made a direct challenge to the authority of the government.
示威者现已对该政府的权威性提出了直截了当的质疑。
PHRASE If someone rises to the challenge, they act in response to a difficult situation which is new to them and are successful. 奋起应对挑战
The new Germany must rise to the challenge of its enhanced responsibilities.
新德国必须奋起应对更艰巨的挑战。
V-T If you challenge ideas or people, you question their truth, value, or authority. 质疑
Democratic leaders have challenged the president to sign the bill.
民主党领导人对总统签署这项法案存有质疑。
The move was immediately challenged by two of the republics.
这项提案立即遭到了这两个共和国的质疑。
V-T If you challenge someone, you invite them to fight or compete with you in some way. 向…发出挑战
Marsyas thought he could play the flute better than Apollo and challenged the god to a contest.
玛息阿觉得他长笛吹得比阿波罗好，便向这位神发出挑战。
He left a note at the scene of the crime, challenging detectives to catch him.
他在作案现场留了一张纸条，挑衅侦探们去抓他。
N-COUNT Challenge is also a noun. 挑战
A third presidential candidate emerged to mount a serious challenge and throw the campaign wide open.
第3位总统候选人上场郑重发出挑战，令这次竞选充满悬念。
→ see also challenging
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