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他們未能贏得所必須的2/3多數(shù)票.They failed to win the requisite twothirds majority.到山區(qū)去穿暖和的衣服是必須的.Warm clothes are a must in the mountains.他做工作缺乏成功所必須的信心.He won't go at a job with the confidence necessary for success....

“必須的”的英語可以翻譯為：integrant，obligatory，pre-requisite，prerequisite ...