一些科学家提出了向北极平流层释放气溶胶喷剂的概念。
The concept of releasing aerosol sprays into the stratosphere above the Arctic has been proposed by several scientists.
混沌理论是由科学家提出的,试图解释行星的运动和环境条件的变化。
Chaos theory was developed by scientists, trying to explain the movement of the planets and the changes in environmental conditions.
一些科学家提出了一个理论:当地面很滑的时候,或许大风就可以移动岩石。
Some scientists theorized that perhaps when the ground is slippery the high winds can then move the rocks.
Even while Aristotle may deny that there is a single method appropriate to the study of politics he proposes a set of common questions that political scientists have to address.
且总是时有变迁,虽然亚里士多德,可能否定有单一方法适合研究政治,但他却也提出一套通用的问题,政治科学家必需加以探讨。
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