Externally,we face four difficulties of financial crisis,climate change,energy resource and grain security. Internally,we face four challenges of binding force on responsibility,environment,resource and land.
从外部压力来看,我们面临着金融危机、气候变化、能源资源和粮食安全这四大难题;从内部压力来看,我们面临着责任约束、环境约束、资源约束和土地约束这四大挑战。
参考来源 - 为什么说转变经济发展方式已刻不容缓·2,447,543篇论文数据，部分数据来源于NoteExpress
低空目标的探测与跟踪是雷达所面临的四大难题之一。
Low altitude target detection and tracking is one of the four difficult problems for radar.
合并报表问题是当前财务会计的四大难题之一，受到世界范围内的广泛关注。
The preparation of the consolidated financial statements, which is one of the four difficult issues in the financial accounting field, has aroused general concern of the world.
合并会计报表被称为财务会计四大难题之一，近年来引起学术界的广泛关注。
Consolidated financial statement to is called the finance accountancy one of the four greatest hard nut to cracks, cause extensive concern of the academic circles in recent years.
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