Research opportunities exist in a wide range of areas.
研究机会存在于广泛的领域中。
Numbers do not exist in all cultures.
数字并非在所有文化中都存在。
Such a hierarchy may also exist in plants.
这种等级结构也可能存在于植物中。
There is also early evidence suggesting that amino acids may also exist in the space between stars.
VOA: special.2009.09.30
Now, the poems that you'll be reading, we'll be talking about, did not, of course, always exist in the form that you find them.
我们现在要阅读讨论的这些诗篇,当然并不总是以我们看到的形式出现的。
The Hobbesian state will always exist in a world of hostile other states, unregulated by some kind of higher law.
即国家总是存在于,一个充满敌意的世界里,而且总是被更高的法则约束着。
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