want of necessary proof 缺乏必需的证明...consider it necessary to do sth 认为有必要做某事...if necessary 如果必要的话...necessary repair 必要补偿...necessary bandwidth 必需频带宽度...necessary consent 必需的同意...necessary formality 必要程式,必要手续...necessary condition 充分条件,充分必要条件必要条件...necessary parties 必要当事人...necessary law of nations 国际强制法...socially necessary labour 社会必要劳动...contract for the supply of necessary goods 供应必需品契约...
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