The goal is to greatly expand existing medical databases and to share them, to speed up understanding of diseases and development of treatments.

这样做的目的是为了极大扩展现存医疗数据库并且进行分享，加速人类对于疾病的理解及研发相应的治疗措施。

You get ill, and you get better, and your medical case history and data gathered from your body becomes part of the medical databases that help other people. You get paid for that.

你生病了，你会好起来，你的病历和从你身体收集的数据成为帮助其他人的医疗数据库的一部分。你得到报酬。