go after追逐；追求；追击；
例如Peterson was let go after less than two years.
Don\'t go out after dark.
天黑后别往外跑。
If we go in after them, they can ambush us easily.
只要我们跟进去，他们就能轻易地打我们一个埋伏。
With the help of psychologists, there is fresh hope that we might go green after all.
在心理学家的帮助下,我们终于有了绿色环保的新希望。
