But things which were at rest will move at a constant velocity, opposite of the velocity that you have relative to me.

这些静止的东西都在匀速运动,方向正好跟你相对我运动的速度方向相反

耶鲁公开课 - 基础物理课程节选

It is of opposite charge and it exerts an influence, only that is minus to plus so that is going to give me a minus term here.

它具有相反的电性，所以它也会有影响，只有这个负值相对正值来说会起到减少的作用,所以这里将会引入一个负值的量。

麻省理工公开课 - 固态化学导论课程节选