你无法前瞻性地连接这些点;你只能回顾性地连接它们。
物体的加速度与所受的合外力成正比,与物体的质量成反比。加速度的方向与合力的方向相同。
The price of freedom is eternal vigilance.
We are not victims of our circumstances. We are products of our decisions.
Every match is a new opportunity to prove yourself.
I was neat, clean, shaved and sober, and I didn't care who knew it.