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- Chapter two defined the type, attribute and necessity existing of the turnpike; 第二章对收费公路的定义、类型、属性及存在的必要性进行了阐述；
- It was done under the pressure of the necessity. 这件事是在迫切需要的情况下而做的。
- Food is a necessity, but wine is an extravagance. 食物是必需品,而酒则是奢侈品。
- She felt the necessity of accepting the invitation. 她感到必须接受这一邀请。
- This family is in great necessity. 这户人家穷困到极点。
- We are now under the necessity of doing the work. 我们现在必须做这工作。
- He was driven by necessity to steal. 他迫不得已而偷窃。
- Necessity is the mother of invention. 需要是发明之母。
- A hive cannot exist without a queen. 蜂房不可无蜂王。
- The necessity for making decisions devolves on him. 作出决策乃当务之急，此事必然地落在他身上。
- They seem to exist on a different spiritual plane. 他们似乎生活在不同的精神境界。
- We can not exist without food or water. 没有食物和水我们不能生存。
- By necessity; by force of circumstance. 强制地通过需要; 通过环境的力量
- Our future plans must mesh with existing practices. 我们未来的计划必须与当前的实践相合。
- Matter can exist as a solid, liquid, or gas. 物体存在的形态有固体，液体，气体。
- A critic is a necessary evil, and criticism is an evil necessity. 批评家是必然的邪恶，而批评是邪恶的必然。
- We cannot exist without food or water. 没有食物或水我们就不能生存。
- No animal or plant can exist without phosphorus. 没有一种动物或植物离开磷能够生存。
- That department has ceased to exist. 那部门已不复存在。
- Dissatisfied with existing conditions. 不满的对现状不满意的
