In fact, viruses couldn't kill all the immune cells in a health individual. 实际上，病毒并不能杀死一个健康人身体中的所有免疫细胞。
The researchers found that when healthy men consumed the flavanol-rich cocoa, the ability of their blood vessels to relax improved significantly. 研究者发现，健康人吃富含黄烷醇可可饮料者，其血管舒张的能力改善。
