我也很吃惊，不过是在相反的方向。

I was amazed too, in the opposite way.

youdao

事实上，在相反的方向，两次计算了这些通量。

So, in fact, you'll be summing the flux through these guys twice with opposite orientations.

youdao

利物浦在相反的方向。

Liverpool is in the opposite direction.

youdao

you're looking for that equal and opposite forces acting at two ends of the rope.

你就得求出作用在绳子两端的,大小相等方向相反的力

耶鲁公开课 - 基础物理课程节选