1) Challenge and response
挑战与应战
2) opportunity
挑战
1.
Facing this historic opportunity and challenge, the traditional agricultural structure and the management system of Gansu are encountering severe trials.
在这一历史性机遇与挑战面前 ,甘肃省传统的农业结构和经营机制均面临着严峻的考验。
2.
In fact ,it also presents us-some middle school teachers some challenge and opportunity.
本文从网络特点入手，分析了网络带给青少年的心理、观念和行为的双重影响，进而分析了网络时代中学德育面临的机遇与挑战，并针对当前青少年存在的问题提出了几点对策。
3) Challenge
挑战
1.
Biodiesel and the challenge in the future;
生物柴油及其面临的挑战
2.
The situation and challenges for deepwater oil and gas exploration and exploitation in China;
我国海洋深水油气开发面临的挑战
3.
Advantage and challenge of underbalanced drilling technology;
欠平衡钻井技术的优势和挑战
4) challenges
挑战
1.
Opportunities and challenges of liquid laundry detergent industry in China;
中国衣用液体洗涤剂行业面临的机遇和挑战
2.
Challenges and Strategies in Implementing Municipal Wastewater Reuse;
城市废水资源化面临的挑战及其对策
3.
Opportunities and Challenges Facing Chinas Alumina Industry;
中国氧化铝工业面临的机遇和挑战
5) chanllenge
挑战
1.
That China s joining WTO brings Xi an the opportunity never heard before and a big chanllenge as well.
我国加入WTO,既给西安的旅游业带来了前所未有的机遇,也带来了很大的挑战。
6) legal challenge
法律挑战
参考词条
补充资料：应战
1.谓迎战来敌。 2.接受挑战。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。