您要查找的是不是：
- 必需的necessitous
- （喻）药某种令人不快的但却必需的或不可避免的东西，例如矫正性惩罚Something, such as corrective discipline or punishment, that is unpleasant but necessary or unavoidable.
- 成本某物的花费，例如时间或劳动，是为达到某一目的而必需的The expenditure of something, such as time or labor, necessary for the attainment of a goal.
- 必需essential
- (喻)药某种令人不快的但却必需的或不可避免的东西，例如矫正性惩罚Something, such as corrective discipline or punishment, that is unpleasant but necessary or unavoidable.
- 氧气是生命所必需的。Oxygen is necessary for life.
- 生存空间被认为对一民族，尤指纳粹德国的继续生存或经济富足所必需的额外领土Additional territory deemed necessary to a nation, especially Nazi Germany, for its continued existence or economic well-being.
- 使计算机完全进入运行状态必需的步骤，它通常包括装入操作系统。参阅coldboot。The steps necessary to place a computer in fully operational status; it, typically, consists of loading the operating system.
- 空气和水是生命所必需的东西。Air and water are indispensable to life.
- 他们所必需的是淡水。Their need was fresh water.
- 空气是生命所必需的。Air is indispensable to life.
- 她期望得到获得提名所必需的三分之二多数。She expect to achieve the requisite two-thirds majority for nomination.
- 显示器是微机必需的输出设备。The monitor is an essential output device of a microcomputer.
- 不是必需的optional
- 公平是当法官所必需的。Impartiality is essential to a judge.
- 多言的，罗唆的倾向于用超过传达意思所必需的词的，用超过传达意思所必需的词叙述的Tending to use, using, or expressed in more words than are necessary to convey meaning.
- 虽然不是必需的,但是这个属性使您能够设置Informix动态服务器等待某一锁定的秒数。Although not required, this property enables you to set the number of seconds that Informix dynamic server waits for a lock.
- 人类所具有的优越的脑子显然是为掌握语言所必需的机构。The superior brain of man is apparently a necessity for the mastering of speech.
- 附件，配件非必需的，然而为了达到一效果或结果又是希望得到的Something nonessential but desirable that contributes to an effect or result.
- 多吃些含人体必需的氨基酸的食物如牛羊肉，也会有益。Eating more foods containing essential amino acids, such as red meat, will also help.
