So, over the course of time this could have a very substantial impact on the community.

所以,这种病毒在一段时间内,会对当地社会产生持续的影响

耶鲁公开课 - 生物医学工程探索课程节选

Here, in one second, it seems to have gone much further, so it's probably traveling faster.

在这一秒内,它似乎运动了更远的距离,所以这段时间它可能运动得更快

耶鲁公开课 - 基础物理课程节选