如何使用 "challenge" 造句

1. This then is a global challenge .
这是一项全球性挑战。
2. Some of the paper 's results challenge accepted wisdom .
文章中的一些结论质疑了常识的原理。
3. Ubs said it would challenge enforcement of the complaint .
瑞银表示将反对这一申诉的执行。
4. Diagnosing cancer is a challenge because it requires expensive , time-consuming assays .
诊断癌症是项有挑战性的项目,因为它需要昂贵而又费时的化验。
5. Its pluralism was a profound challenge to the authoritarian crony capitalism taking root in russia under vladimir putin .
其多元化,完全是在叫板弗拉基米尔普京统治下的俄罗斯根深蒂固的裙带资本主义专制。