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- But when a violent wind bends tall poplars and scatters the leaves in eddies, when it uproots trees and carries off the roofs of buildings, who can doubt the existence of air? 但是当暴风吹弯了高大的杨树，把树叶吹散成涡旋，当它连根拔起树，吹走建筑的屋顶，谁会怀疑空气的存在呢？
- Potassium is necessary to the existence of all living things. 钾是所有生物生存必须的。
- Atheists deny the existence of God. 无神论者不相信上帝的存在。
- I believe in the existence of discarnate spirits. 我相信无形的灵魂之存在。
- Do you really believe in the existence of God? 你真地相信上帝存在吗?
- He proved the existence of parallel lines. 他证明了平行线的存在性。
- Dimorphism The existence of two distinct forms. 二型现象：出现两种不同的类型。
- The finds from these burial grounds point to the existence of a prosperous matriarchal society. 这些墓地中发现的东西说明曾经有过一个昌盛的母系社会。
- Do you believe in the existence of God? 你相信上帝的存在吗?
- Determinism denies the existence of free will. 宿命论否认自由意志的存在。
- With Berkeley he denies the existence of matter. 他和柏克烈同样否认物质的存在。
- The phenomenon of the existence of isomers. 同分异构现象存在同分异构体的现象
- With nihilism, no discussion is possible; for the nihilist logic doubts the existence of its interlocutor, and is not quite sure that it exists itself. 和虚无主义没有论争的可能。因为讲逻辑的虚无主义者怀疑和他进行争辩的对方是否存在，因而也就不能肯定他自己是否存在。
- He does not believe in the existence of ghosts. 他不相信有鬼存在。
- With nihilism, no discussion is possible; for the nihilist logic doubts the existence of its interlocutor,is not quite sure that it exists itself. 和虚无主义没有论争的可能。讲逻辑的虚无主义者怀疑和他进行争辩的对方是否存在，因而也就不能肯定他自己是否存在。
- I don't doubt the veracity of your report. 我毫不怀疑你报告中的真实性。
- Many people believe in the existence of aliens. 很多人相信外星人的存在。
- What is the existence of these Fijian Road? 这些重名路是怎么存在的呢？
- I doubt the propriety of such a remark. 我怀疑这样的话是否得体。
- God cannot alter the past; that is why he is obliged to connive at the existence of historians. 神不能改变过去; 惟其如是，他就不能不对历史家的存在一只眼开一只眼闭了。
