Exist in
存在于───Exist in
Such a hierarchy may also exist in plants.───这种等级结构也可能存在于植物中。
Research opportunities exist in a wide range of areas.───研究机会存在于广泛的领域中。
We do not exist in the world. The world exists in us.───不是我们存在于世界。而是世界存在于我们之中。
Hundreds to thousands of mitochondria exist in each human cell, occupying up to a quarter of their cytoplasm.───成百上千个存在于人类细胞中的线粒体占据了整个细胞质的四分之一。
A user should be totally unaware of whether or not the database is distributed (whether parts of the database exist in multiple locations).───一个用户应该完全觉察不到数据库是如何分布的（不管部分数据库在许多位置存在）。
Our military has put the terror training camps of Afghanistan out of business, yet camps still exist in at least a dozen countries.───我军已经将阿富汗境内的恐怖训练营捣毁，但这样的训练营还遍布在其他十几个国家中。
Some animals, such as hedgehogs, exist in a state of suspended animation during the winter.
Some species exist in this small area of forest and nowhere else on Earth.
Legal questions rarely exist in the abstract; they are based on real cases.
It's incredible that such attitudes still exist in this day and age .
Carbon steels exist in three stable crystalline phases.