"I think one of the most important milestones we're going to see over the next five to ten years is the movement of some of this work into the clinic.

So for example the target that I was speaking of earlier is a target that we can make a drug for, which we are doing and then get to patients in the clinic. "

这是一位美国医学工作者面对记者采访时说的。

请教老师：这里用过去进行时 I was speaking of earlier 体现了什么含义？

我如果用一般过去时I spoke of earlier代替，含义会有什么变化？

就是说，这2者在这个当前的具体语境中，究竟理解上有什么不同？