instantaneous center of absolute velocity

例句：

1. 1. The decision wasmade instantly.
   决定是立刻做出的。
2. 2. Themovie ended in an instantaneous flashof light.
   电影在一瞬间变成了一道闪光。
3. 3.The train arrived instantly at the station.
   火车在车站一到达就到了。