yán / jiū / rén / yuán / zhèng / zài / guān / chá / Xǔ / wàng / xì / bāo / rú / hé / bāng / zhù / shén / jīng / xiū / fù研究人员正在观察许旺细胞如何帮助神经修复。Researchers are studying how Schwann cells help repair nerves.