The global emergence of the population question poses a serious challenge to many countries and regions.
人口问题在全球范围出现，成为许多国家和地区面临的严重挑战。
The United States has expressed concern about an arms build-up in Venezuela saying it poses a serious challenge to stability.
美国对委内瑞拉的武器积累表示担忧。美国表示，这对稳定提出了一个严峻的挑战。
Aging poses a serious challenge to OECD (Organization of Economic Co-operation and Development) countries, in particular, how to pay for future public pension liabilities.
老龄化给经合组织国家，尤其是在如何支付未来的公共养老金负债方面，带来了严重的挑战。
The ever-changing modern information technology is affecting and changing our learning styles, working methods, lifestyles and ways of thinking, also poses a serious challenge to education.
日新月异的现代信息技术正在影响和改变着我们现有的学习方式、工作方式、生活方式和思维方式，并向教育提出了严峻的挑战。
Security-critical systems tend to be subjected to much more serious security threats, therefore it poses a great challenge to reduce the risk of security-critical applications.
安全关键系统面临着日趋严峻的安全威胁，如何降低安全关键实时应用的风险成为挑战。
Security-critical systems tend to be subjected to much more serious security threats, therefore it poses a great challenge to reduce the risk of security-critical applications.
安全关键系统面临着日趋严峻的安全威胁，如何降低安全关键实时应用的风险成为挑战。
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