necessary essential obligatory
They failed to win the requisite twothirds majority.
他们未能赢得所必须的2/3多数票。
—— 给力词典精选Warm clothes are a must in the mountains.
到山区去穿暖和的衣服是必须的。
—— 给力词典精选He won´t go at a job with the confidence necessary for success.
他做工作缺乏成功所必须的信心。
—— 给力词典精选Yet they were built on stilts , quite needlessly.
半山上也用吊脚楼形式, 这形式是必须的吗?
—— 给力词典精选In the case of cotton processing, opening is necessary preliminary to cleaning.
在纺棉的情况下, 开棉是除杂前必须的。
—— 辞典例句