something that has a very small chance of success
成功机会很小的事情 (chenggong jihui hen xiao de shiqing)
"Winning the competition is a long shot, but we’ll try."
"赢得比赛的可能性很小，但我们会试试。" (yingde bisai de kenengxing hen xiao dan women hui shishi)
a specific group of people a campaign is aimed at
The more you practice, the better you become.
no longer involved or relevant
a type of machine learning where an agent learns to make dec...
to throw something away
to discuss something in detail
