Much of Einstein's work was multidisciplinary and abstract, while physics today is focused and empirical.
爱因斯坦的研究成果大多是多学科的和抽象的，而今天的物理学则具有很强的针对性和实验性。
The acceleration is thought to be driven by dark energy, but what that dark energy is remains an enigma - perhaps the greatest in physics today.
研究者们认为是暗能量推动宇宙膨胀速度加快，但是暗能量究竟是什么仍然是个未知数——也许这是当今物理学界的最大难题。
Matter, space, energy and time, they are the fundamental parts in physics today, though their definitions and the essence are still perplexed for answers.
物质，空间，能量，时间是现代物理学的基本组成部分，但是它们的定义和本质还在困惑着我们。
Matter, space, energy and time, they are the fundamental parts in physics today, though their definitions and the essence are still perplexed for answers.
物质，空间，能量，时间是现代物理学的基本组成部分，但是它们的定义和本质还在困惑着我们。
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