crystal ball

柯林斯词典

1. N-COUNT If you say that someone, especially an expert, looks into a crystal ball, you mean that they are trying to predict the future. Crystal balls are traditionally used by fortune-tellers. (佔蔔用的)水晶球
Local economists have looked into their crystal balls and seen something rather nasty. 儅地的經濟學者們已預測到將會出現棘手的問題。