necessityn.需要;必需品;必然
necessity ties of existence生活必需品
necessity of confidentiality[法] 必要信任
necessity/non-necessity必要性/非必要性
necessity and the feasibility必要性与必然性
necessity of cause and cffect因果必然性
necessity of scientific norms科学规范的必然性
necessity of self-protection[法] 必要自卫, 正当自卫
Necessity caused me to come.我不得不来。
Necessity mothers invention.需要会产生发明。
necessity of multilateral talks多边会谈的必要性