很久以前离开大中枢太阳的梦想边界后，只有空气和以太或二氧化碳可以分享。

Long ago and after leaving the boundaries of the dream of the Great Central Sun, it was only air and ether or carbon dioxide that was Shared.

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目的：原发中枢的淋巴瘤复发后的预后不良。

Purpose: The prognosis of relapsing primary CNS lymphoma (PCNSL) is poor.

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背景及目的：新近研究显示中枢神经系统损伤后可以再生，而这种结构重建是功能重组的基础。

Background and object: Recent research shows that central nervous system can regenerate itself following injury which is the basis of functional reorganization.

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