All the auxiliary verbs of necessity like yinggai (应该) can express the modality of justice and recognition.
"应该"等必要类助动词都可以表达道义情态和认识情态,前者可称为必要类动词。
The nature of policy and its relationship pattern with system have determined the necessity of institutional analysis of educational policy.
政策的本质以及它与制度的关系模式决定了教育政策制度分析的必要。
The necessity for power control lies in the likelihood that its character of self-dissimilation and its private property tend to combine,making it hard to control.
权力控制的必要性在于权力的自我异化倾向与权力主体的私人属性相结合,导致权力难以控制;权力运作过程中的两重性矛盾,导致权力易于失控;权力失控走向腐败对社会运行产生严重影响。
The cumene production facility revamp for Sinopec Shanghai Gaoqiao Branch is estimated from four aspects including product market, technology and policy as well as economy, the results show that the cumene production facility revamp for Sinopec Shanghai Gaoqiao Branch is necessary and feasible.
本文从产品市场、技术、政策法律和经济四方面对中国石化股份有限公司上海高桥分公司异丙苯装置改造进行了评估 ,结果表明 ,上海高桥分公司的异丙苯装置改造是必要可行
Analysis of the Necessity and Feasibility of the Wetland Ecological Benefit Compensation;
建立湿地生态效益补偿制度的必要性及可行性分析
On the Necessity and Significance of Concealed Deposits Exploration;
加强隐伏矿勘查的必要性和意义
The Necessity and Feasibility Attempting Volunteer Agreement Environment Management in China are Treatised;
在中国尝试自愿协议式环境管理方法的必要性与可行性
Thing that is essential or urgent
必要的事；紧急的事；必须履行的责任；需要；必要性
Awaken to the necessity of...
认识到。。。的必要性
essential ingredients.See Synonyms atindispensable
必要的构成要素参见
teleological necessity
目的论的必要性 目的论的必要性
Fourth, it is imperative to establish essential rules and regulations.
第四，必须建立必要的规章制度。
You must comply with all the necessary formalities.
你必须遵照所有必要的正式手续。
You decided what to do yourself and, if necessary, you lead the crowd.
“你必须保持主见，必要时，破浪而行。”
We must bestir ourselves to take the necessary action.
我们必须积极（奋力）采取必要的行动。
Civilization is a limitless multiplication of unnecessary necessities.
文明是不必要的必需品的无限增加。
You must bestir yourself to take the necessary action.
你必须自我振作去采取必要的行动。
On the contrary, proper legal action must be taken against them.
相反，必须给予必要的法律的制裁。
Above all, you must collect the necessary materials.
首先，你必须把必要的资料搜集起来。
The Necessity,Inevitability and Limitations of Language Planning;
语言规划的必要性、必然性和局限性
CERTAINTY AND NECESSITY OF THE REFORM OF THE SHORT STORY MAGAZINE;
论《小说月报》改革的必然性和必要性
On the Necessity of Sticking to Two Principals Without Fail in New Era;
论新时期坚持“两个务必”的必要性
Was it necessary that my uncle should be informed?
有必要通知我叔叔吗？
Is there any need for you to go there?
你有必要去那里吗?
needless work, trouble, worry
不必要的工作、 麻烦、 烦恼.