Sleep has all kinds of important neurological benefits like clearing out dead cells, managing your immune system, regulating your metabolism and storing memories.

睡眠对神经系统有很多重要的好处，比如清除死亡，理免疫系统，调节新陈代谢和储存记忆。

The synovium's composed of loose connective tissue, blood vessels, lymphatic vessels, and on the surface—" Type A" cells that clear cellular debris and " Type B" cells that produce components of synovial fluid, which helps lubricate the two articular surfaces.

滑由松散结缔组织、血、淋巴组成；在滑表面，A清理碎屑，B产生滑液成分，滑液能够润滑两块关节的表面。

It usually starts from the more common clear cell type, CCRCC, through a process called EMT, epithelial to mesenchymal transition.

它通常始于较为常见的透明，即ccRCC，通过上皮-间质转化（EMT）这一过程发展而来。