Theoreticians are busy building and refining the castles in the air of the model world.
理论家们忙于建立和改善模型世界中的空中楼阁.
辞典例句
That is the light whose analysis has got theoreticians scratching their heads.
就是对这个光的分析使理论学家感到挠头.
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In Einstein's day, there were only a few thousand physicists worldwide, and the theoreticians who could intellectually rival Einstein probably would fit into a streetcar with seats to spare.