Conclusion the increase in early expression of NG2 and O4 and the number of oligodendrocyte precursor cells after whole brain irradiation of rats is related to the observation time-point.
结论大鼠全脑照射后早期大脑ng2和O4表达增加，少突胶质前体细胞增多，并且和观测时间相关。
The idea that loneliness spreads like a contagion was based on the observation that, over time, scores of loneliness seemed to spread to the edge of a network.
孤独可以像传染病一样传播的观点建立在这一观察基础之上：长期的观察发现许多孤独感似乎扩散到了这一网络的边缘。
It is a commonplace observation that work expands so as to fill the time available for its completion.
为了将可支配的时间添满而增加工作量是很司空见惯的作法。
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