Learners can feel very discouraged if an exercise is too difficult.

The problem was too difficult for most of the students to work out.

那个问题太难了，大部分学生都没有做出来。

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It isn't too difficult once you get the idea

你一旦弄懂了，就不太难了。

柯林斯高阶英汉双解学习词典

The problem to cause crack of road concrete pavement early in guangxi province and prevention method

广西公路路面早期裂缝的原因及其防治

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Development Review of Premixed Concrete and Relevant Machinery in Shandong and Guangxi Province

山东、广西预拌商品混凝土与机械发展回顾

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Ecological security and resource utilization efficiency of Guangxi Province in Southwest Karst Areas of China

西南岩溶区广西生态安全及资源利用效率

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On the environment, prospect and measures concerning the real estate investment in Guangxi Province

略论广西房地产投资环境、前景与投资对策

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Characteristics Analysis of Geological Hazards Caused by Heavy Rainfall in Recent Years in Guangxi Province

广西近年来强降雨引发地质灾害的特征分析

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Risk Assessment of Environmental Factors for Birth Defects in the Year 2000 in Guangxi Province

广西2000年出生缺陷环境致畸因素危险度评价

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The characteristics and Countermeasures of drought and waterlogging in Guangxi Province

广西旱涝特征及减灾对策

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The Current Situation of Environmental Geological Disasters and Its Prevention Measures in Guangxi Province

广西环境地质灾害现状与防治措施

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Demand Forecast Model in Guangxi Province for Specialized Talents

广西专业技术人才需求的预测模型

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A study on the geographic division of agricultural insects in Guangxi Province

广西农业昆虫地理区划探讨

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Guangxi province of China joined it in 2005.

2005年，中国广西也加入了此行列。

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The Strategy for Developing the Electronic& Commerce of Guangxi Province's Agriculture

广西农业电子商务的发展与战略研究

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Comparative study of city sport for all status in Guangdong province and Guangxi province

我国两广城镇大众体育现状的比较研究

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Study on Ecological Restoration in the Serious Soil and Water Loss Region of Guangxi Province

广西水土流失重点区域生态恢复试验研究

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Review and Reflection on Instant Forest Construction of Guangxi Province

广西速丰林建设回顾与思考

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Mineralization Mechanism Research of Shear Zone Gold Deposits in Northern Guangxi Province

桂北地区剪切带型金矿成矿机理研究带材多刀圆盘剪纵剪切

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Vegetation Community Structure in Different Functional Areas of Nanning City, Guangxi Province

南宁市几个功能区的植被群落结构特征分析

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On the Status Quo and Development of the Manganese Industry in Guangxi Province

论广西锰业现状与发展

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