缺一不可

Since none of the four is dispensable, they are equally important.

实际上，这四种力量既然是缺一不可的，所以是同等重要的。

Conditions,objects and targets as students' dynamic roles should form an organic entia in the process of activities,and teachers' teaching activities and students' learning activities deploy in this entia of activities.

因此，在教学活动中，就包含了教师作为教育主体的教学活动和学生作为学习主体的学习活动的两个方面。显然两者缺一不可，关键在于如何使两种活动达到统一或者说如何使两者能在统一中实现教学的目标？

Before nation comes into being, the human community has ethnical character, it is, essentially, a kind of ethnos or "ethnical community". Because the clan is not endogamous community, the historical development of ethnos has only three stages.

史达林民族定义主要内容为：「共同语言」、「共同地域」、「共同经济生活」和「共同心理素质」四大特徵缺一不可；民族是由氏族、部落、部族和民族历史四阶段所形成，但民族只有在资本主义上升时期才能形成；民族非种族共同体。

As both the two half-length, two half-brain, contrary complementation, and are indispensable.

二者如同人的两半身、两半脑一样，相反相成，缺一不可。

For the expert on India, Hermann Goetz, there are two essential Indias.

研究印度的专家赫曼。苟茨认为世上有两个印度，缺一不可。

Human reproduction needs men and women need male parent plant and plant hybrid mother, and neither is dispensable.

人类的繁殖需要男人和女人，植物的杂交需要父本和母本，缺一不可。

The development practices of foreign listed companies explain that governance structure is an organic system, indispensably.

由于国外上市公司的发展实践说明，公司治理是一个有机的系统，缺一不可。

From the angle of information processing theory and language competence and performance, this paper analyzes the function of input and output on language acquisition and their interrelation.

本文从信息处理理论的角度和语言能力和语言运用的角度分析输入及输出语言习得中的作用，两者缺一不可。

The arts form in the Intrinsic function of the emotion factor and the form factor .

艺术中的情感因素和形式因素缺一不可。

Mr. Thomas Kleber told us, among all the guests visiting Park Hotel Viznau, there are about 70 percent for holidays, around 10% to 20%for directors meetings, another 10% for business trips.

Kleber 先生说，在威茨瑙所有的员工都是为整个团队服务的，没有地位的等级之分，每个人各负其责，缺一不可。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。