把这一句，留给此刻的你
So if I could just go back now to something which I am sure we should cover here regarding our original scenario: we have, in fact, four ways - four major potential lines of research.
所以，如果我现在能回到一些我确信我们应该在这里讨论的关于我们最初设想的东西:事实上，我们有四种方法——四种主要的潜在研究方向。