It is entirely impossible for a body to attain speeds faster than that of light.
要让一个物体获得比光速还快的速度是完全不可能的。
With absence of mental stimulus of this kind, human cooperation would be entirely impossible;
没有这种精神刺激,人类合作就完全不可能;
The year I spent researching and writing this book would have been entirely impossible were it not for the unwavering support of my wonderful wife.
若无我可爱的妻子的坚定支持,我就完全不可能花一年的工夫,来做研究并且写这本书。
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